Add README

Co-authored-by: Dmitri Popov <[email protected]>

src/bci_build/package/git/README.md.j2

@@ -0,0 +1,29 @@
+# {{ image.title }}: Git application container
+{% include 'badges.j2' %}
+
+
+## Description
+
+Git is a distributed version control system that tracks
+versions of files. Git is primarily designed for controlling source code in collaborative software development.
+
+
+## Usage
+
+This container provides the {{ image.publish_registry.vendor }} version of Git.
+
+Example of using Git container:
+
+```ShellSession
+$ podman run {{ image.pretty_reference }} git help
+```
+
+As Git requires a repository, the container
+does not explicitly set an entrypoint. This way, you can launch the container in
+interactive mode to clone a repository and work on it. To avoid losing all your changes when exiting the container, use a persistent volume mount on launch.
+
+For more use cases and documentation, refer to the
+[Git SCM documentation](https://git-scm.com/doc).
+
+
+{% include 'licensing_and_eula.j2' %}