Update README, Add code of coduct

CODE_OF_CONDUCT.md

+# Contributor Covenant Code of Conduct
+
+## Our Pledge
+
+We as members, contributors, and leaders pledge to make participation in our
+community a harassment-free experience for everyone, regardless of age, body
+size, visible or invisible disability, ethnicity, sex characteristics, gender
+identity and expression, level of experience, education, socio-economic status,
+nationality, personal appearance, race, religion, or sexual identity
+and orientation.
+
+We pledge to act and interact in ways that contribute to an open, welcoming,
+diverse, inclusive, and healthy community.
+
+## Our Standards
+
+Examples of behavior that contributes to a positive environment for our
+community include:
+
+* Demonstrating empathy and kindness toward other people
+* Being respectful of differing opinions, viewpoints, and experiences
+* Giving and gracefully accepting constructive feedback
+* Accepting responsibility and apologizing to those affected by our mistakes,
+  and learning from the experience
+* Focusing on what is best not just for us as individuals, but for the
+  overall community
+
+Examples of unacceptable behavior include:
+
+* The use of sexualized language or imagery, and sexual attention or
+  advances of any kind
+* Trolling, insulting or derogatory comments, and personal or political attacks
+* Public or private harassment
+* Publishing others' private information, such as a physical or email
+  address, without their explicit permission
+* Other conduct which could reasonably be considered inappropriate in a
+  professional setting
+
+## Enforcement Responsibilities
+
+Community leaders are responsible for clarifying and enforcing our standards of
+acceptable behavior and will take appropriate and fair corrective action in
+response to any behavior that they deem inappropriate, threatening, offensive,
+or harmful.
+
+Community leaders have the right and responsibility to remove, edit, or reject
+comments, commits, code, wiki edits, issues, and other contributions that are
+not aligned to this Code of Conduct, and will communicate reasons for
+moderation decisions when appropriate.
+
+## Scope
+
+This Code of Conduct applies within all community spaces, and also applies when
+an individual is officially representing the community in public spaces.
+Examples of representing our community include using an official e-mail
+address, posting via an official social media account, or acting as an
+appointed representative at an online or offline event.
+
+## Enforcement
+
+Instances of abusive, harassing, or otherwise unacceptable behavior may be
+reported to the community leaders responsible for enforcement at
+<info@b-data.ch>. All complaints will be reviewed and investigated
+promptly and fairly.
+
+All community leaders are obligated to respect the privacy and security of the
+reporter of any incident.
+
+## Enforcement Guidelines
+
+Community leaders will follow these Community Impact Guidelines in determining
+the consequences for any action they deem in violation of this Code of Conduct:
+
+### 1. Correction
+
+**Community Impact**: Use of inappropriate language or other behavior deemed
+unprofessional or unwelcome in the community.
+
+**Consequence**: A private, written warning from community leaders, providing
+clarity around the nature of the violation and an explanation of why the
+behavior was inappropriate. A public apology may be requested.
+
+### 2. Warning
+
+**Community Impact**: A violation through a single incident or series
+of actions.
+
+**Consequence**: A warning with consequences for continued behavior. No
+interaction with the people involved, including unsolicited interaction with
+those enforcing the Code of Conduct, for a specified period of time. This
+includes avoiding interactions in community spaces as well as external channels
+like social media. Violating these terms may lead to a temporary or
+permanent ban.
+
+### 3. Temporary Ban
+
+**Community Impact**: A serious violation of community standards, including
+sustained inappropriate behavior.
+
+**Consequence**: A temporary ban from any sort of interaction or public
+communication with the community for a specified period of time. No public or
+private interaction with the people involved, including unsolicited interaction
+with those enforcing the Code of Conduct, is allowed during this period.
+Violating these terms may lead to a permanent ban.
+
+### 4. Permanent Ban
+
+**Community Impact**: Demonstrating a pattern of violation of community
+standards, including sustained inappropriate behavior,  harassment of an
+individual, or aggression toward or disparagement of classes of individuals.
+
+**Consequence**: A permanent ban from any sort of public interaction within
+the community.
+
+## Attribution
+
+This Code of Conduct is adapted from the [Contributor Covenant][homepage],
+version 2.0, available at
+https://www.contributor-covenant.org/version/2/0/code_of_conduct.html.
+
+Community Impact Guidelines were inspired by [Mozilla's code of conduct
+enforcement ladder](https://github.com/mozilla/diversity).
+
+[homepage]: https://www.contributor-covenant.org
+
+For answers to common questions about this code of conduct, see the FAQ at
+https://www.contributor-covenant.org/faq. Translations are available at
+https://www.contributor-covenant.org/translations.

README.md

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+[![minimal-readme compliant](https://img.shields.io/badge/readme%20style-minimal-brightgreen.svg)](https://github.com/RichardLitt/standard-readme/blob/master/example-readmes/minimal-readme.md) [![Project Status: Active – The project has reached a stable, usable state and is being actively developed.](https://www.repostatus.org/badges/latest/active.svg)](https://www.repostatus.org/#active) <a href="https://liberapay.com/benz0li/donate"><img src="https://liberapay.com/assets/widgets/donate.svg" alt="Donate using Liberapay" height="20"></a> <a href="https://benz0li.b-data.io/donate?project=1"><img src="https://benz0li.b-data.io/donate/static/donate-with-fosspay.png" alt="Donate with fosspay"></a>
 
-# Docker stack
+# JupyterLab R docker stack
+
+Pre-built multi-arch (`linux/amd64`, `linux/arm64/v8`) docker images:
+
+*  `registry.gitlab.b-data.ch/jupyterlab/r/base`
+*  `registry.gitlab.b-data.ch/jupyterlab/r/tidyverse`
+*  `registry.gitlab.b-data.ch/jupyterlab/r/verse`
+*  `registry.gitlab.b-data.ch/jupyterlab/r/geospatial`
+
+Images considered stable for R versions ≥ 4.2.0.  
+:point_right: The current state may eventually be backported to versions ≥
+4.0.4.
+
+**Features**
+
+*  **JupyterLab**: A web-based interactive development environment for Jupyter
+   notebooks, code, and data. The docker images include
+    *  **code-server**: VS Code in the browser without MS
+       branding/telemetry/licensing.
+    *  **Git**: A distributed version-control system for tracking changes in
+       source code.
+    *  **Pandoc**: A universal markup converter.
+    *  **Python**: An interpreted, object-oriented, high-level programming
+       language with dynamic semantics.
+    *  **Quarto**: An open-source scientific and technical publishing system
+       built on Pandoc.  
+       :information_source: verse image, amd64 only
+    *  **R**: A language and environment for statistical computing and
+       graphics.
+    *  **TinyTeX**: A lightweight, cross-platform, portable, and
+       easy-to-maintain LaTeX distribution based on TeX Live.  
+       :information_source: verse image
+    *  **Zsh**: A shell designed for interactive use, although it is also a
+       powerful scripting language.
+
+The following extensions are pre-installed for **code-server**:
+
+*  [.gitignore Generator](https://github.com/piotrpalarz/vscode-gitignore-generator)
+*  [Git Graph](https://open-vsx.org/extension/mhutchie/git-graph)
+*  [GitLab Workflow](https://open-vsx.org/extension/GitLab/gitlab-workflow)
+*  [GitLens — Git supercharged](https://open-vsx.org/extension/eamodio/gitlens)
+*  [Excel Viewer](https://open-vsx.org/extension/GrapeCity/gc-excelviewer)
+*  [Jupyter](https://open-vsx.org/extension/ms-toolsai/jupyter)
+*  [LaTeX Workshop](https://open-vsx.org/extension/James-Yu/latex-workshop)  
+    :information_source: verse image
+*  [Path Intellisense](https://open-vsx.org/extension/christian-kohler/path-intellisense)
+*  [Project Manager](https://open-vsx.org/extension/alefragnani/project-manager)
+*  [Python](https://open-vsx.org/extension/ms-python/python)
+*  [Quarto](https://open-vsx.org/extension/quarto/quarto)  
+    :information_source: verse image, amd64 only
+*  [R](https://open-vsx.org/extension/Ikuyadeu/r)
+*  [YAML](https://open-vsx.org/extension/redhat/vscode-yaml)
+
+## Table of Contents
+
+*  [Prerequisites](#prerequisites)
+*  [Install](#install)
+*  [Usage](#usage)
+*  [Similar projects](#similar-projects)
+*  [Contributing](#contributing)
+*  [License](#license)
+
+## Prerequisites
+
+This projects requires an installation of docker.
+
+## Install
+
+To install docker, follow the instructions for your platform:
+
+*  [Install Docker Engine | Docker Documentation > Supported platforms](https://docs.docker.com/engine/install/#supported-platforms)
+*  [Post-installation steps for Linux](https://docs.docker.com/engine/install/linux-postinstall/)
+
+## Usage
+
+### Build image (base)
+
+latest:
+
+```bash
+cd base && docker build \
+  --build-arg R_VERSION=4.2.1 \
+  -t jupyterlab-r-base \
+  -f latest.Dockerfile .
+```
+
+version:
+
+```bash
+cd base && docker build \
+  -t jupyterlab-r-base:<major>.<minor>.<patch> \
+  -f <major>.<minor>.<patch>.Dockerfile .
+```
+
+For `<major>.<minor>.<patch>` ≥ `4.2.0`.
+
+### Run container
+
+self built:
+
+```bash
+docker run --rm -ti jupyterlab-r-base[:<major>.<minor>.<patch>]
+```
+
+from the project's GitLab Container Registries:
+
+*  [jupyterlab/r/base](https://gitlab.b-data.ch/jupyterlab/r/base/container_registry)  
+    ```bash
+    docker run -it --rm -p 8888:8888 -v $PWD:/home/jovyan registry.gitlab.b-data.ch/jupyterlab/r/base[:<major>[.<minor>[.<patch>]]]
+    ```
+*  [jupyterlab/r/tidyverse](https://gitlab.b-data.ch/jupyterlab/r/tidyverse/container_registry)  
+    ```bash
+    docker run -it --rm -p 8888:8888 -v $PWD:/home/jovyan registry.gitlab.b-data.ch/jupyterlab/r/tidyverse[:<major>[.<minor>[.<patch>]]]
+    ```
+*  [jupyterlab/r/verse](https://gitlab.b-data.ch/jupyterlab/r/verse/container_registry)  
+    ```bash
+    docker run -it --rm -p 8888:8888 -v $PWD:/home/jovyan registry.gitlab.b-data.ch/jupyterlab/r/verse[:<major>[.<minor>[.<patch>]]]
+    ```
+*  [jupyterlab/r/geospatial](https://gitlab.b-data.ch/jupyterlab/r/geospatial/container_registry)  
+    ```bash
+    docker run -it --rm -p 8888:8888 -v $PWD:/home/jovyan registry.gitlab.b-data.ch/jupyterlab/r/geospatial[:<major>[.<minor>[.<patch>]]]
+    ```
+
+The use of the `-v` flag in the command mounts the current working directory on
+the host (`$PWD` in the example command) as `/home/jovyan` in the container.  
+The server logs appear in the terminal.
+
+## Similar projects
+
+*  [jupyter/docker-stacks](https://github.com/jupyter/docker-stacks)
+*  [rocker-org/rocker-versioned2](https://github.com/rocker-org/rocker-versioned2)
+
+**What makes this project different:**
+
+1.  Base image: [Debian](https://hub.docker.com/_/debian) instead of
+    [Ubuntu](https://hub.docker.com/_/ubuntu)
+1.  IDE: [code-server](https://github.com/coder/code-server) instead of
+    [RStudio](https://github.com/rstudio/rstudio)
+1.  Just Python – no [Conda](https://github.com/conda/conda) /
+    [Mamba](https://github.com/mamba-org/mamba)
+
+## Contributing
+
+PRs accepted.
+
+This project follows the
+[Contributor Covenant](https://www.contributor-covenant.org)
+[Code of Conduct](CODE_OF_CONDUCT.md).
+
+## License
+
+[MIT](LICENSE) © 2020 b-data GmbH