Document tag naming scheme. Fixes #14

README.md

@@ -23,14 +23,28 @@ The image comes pre-installed with latest releases of:
 - [bash-funk](https://github.com/vegardit/bash-funk) Bash toolbox with adaptive Bash prompt
 - [Docker CE (Community Edition)](https://download.docker.com/linux/debian/dists/bullseye/pool/stable/amd64/) command line client
 - [git](https://packages.debian.org/en/git) command line client
-- [GraalVM CE Java 11, 17 or 21](https://www.graalvm.org/downloads/) with [native-image](https://www.graalvm.org/reference-manual/native-image/) extension.
+- [GraalVM CE (Community Edition) for JDK 11, 17 or 21](https://www.graalvm.org/downloads/) with [native-image](https://www.graalvm.org/reference-manual/native-image/) extension.
 - [openssh-client](https://packages.debian.org/en/openssh-client) SSH command line client
 - [upx](https://upx.github.io/) executable packer
 
 
 Further we add the user `user` with uid `1000` and gid `1000` as non-privileged user in order to run without root privileges.
 Note, that the user is not set to 1000 within the docker image. Specify the uid to be `1000` with your docker run command.
 
+
+## <a name="tags"></a>Docker image tagging scheme
+
+|Tag|Description
+|-|-
+|`:latest-java11` <br> `:latest-java17` <br> `:latest-java21` | latest available [GraalVM CE releases](https://github.com/graalvm/graalvm-ce-builds/releases) for the given JDK
+|`:dev-java21` | latest available [GraalVM CE development builds](https://github.com/graalvm/graalvm-ce-dev-builds/releases) for the given JDK
+|`:XX.Y.Z` | the given GraalVM CE releases (e.g. `17.0.8` for JDK 17 and `21.0.0` for JDK 21) following GraaLVM's [new version naming scheme](https://medium.com/graalvm/a-new-graalvm-release-and-new-free-license-4aab483692f5#8822).
+|`:XX.Y.Z-java11` <br> `:XX.Y.Z-java17` | the given GraalVM CE releases (e.g. `22.3.2-java11`) following GraaLVM's **old version naming scheme**
+
+See all available tags at https://hub.docker.com/r/vegardit/graalvm-maven/tags
+
+
+
 ## Usage
 
 ### Building a local Maven project