This adds instructions for generating git bundles and torrents of git bundles at release time and explains the git bundling concept and why it's useful for git-over-i2p

docs/RELEASE-GIT-BUNDLE.md

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+Releasing a git bundle as an I2P Torrent
+========================================
+
+Git Bundles are a way of taking all(or part) the data in a Git repository and
+bundling it into a single file. The file, once obtained, can be used exactly like
+a remote git repository, and of particular use for large repositories of code with
+a long history like I2P is the fact that you can use a git bundle to "clone" a copy
+of the I2P source after downloading it reliably with Bittorrent, retaining all
+properties of the repository that was bundled. This includes things like branches and
+release tags.
+
+When generating a git bundle accompanying an official I2P release, the bundle generation
+should be done immediately after tagging to ensure that the main branch is even with the
+most recent tag.
+
+Torrents of the I2P git repository are generated monthly on the tenth by IDK.
+.torrent files and magnet links can be found at
+  
+  - https://github.com/eyedeekay/i2p.i2p.git.bundles
+  - https://i2pgit.org/idk/i2p.i2p.git.bundles
+  - http://git.idk.i2p/idk/i2p.i2p.git.bundles
+  - http://idk.i2p/bundles/
+
+Git bundles generated from identical repositories will produce the same outputs. If you
+want to set up your own git bundle mirror, those scripts will help you set up so that
+your bundles are generated in sync with idk's so that we all end up sharing the same
+version of the source code.
+
+To create a git bundle of i2p.i2p named i2p.i2p.bundle, run the command:
+
+        git bundle \
+          create i2p.i2p.bundle \
+          --all \
+          --branches \
+          --tags \
+
+In order to create a torrent of i2p.i2p.bundle, you can either use the Snark WebUI, call
+run Snark manually from the terminal, or use another torrent-creation tool like mktorrent.
+
+For the sake of convenience, this process can be done automatically with the
+
+        ant bundle
+
+target. When the ant bundle target is used, the filename is i2p.i2p.{full.version}.bundle
+and the torrent is i2p.i2p.{full.version}.bundle.torrent Once the bundle is generated, it
+contains all the contents of the repository it was generated from. For i2p.i2p, this is
+about 389mb as of 2020-12-11. It is recommended that most people only seed the latest
+version of the git bundle.
+
+References
+----------
+
+ - [The Git Book: Git Bundles](https://git-scm.com/book/en/v2/Git-Tools-Bundling)
+ - [The Git Documentation: git-bundle](https://git-scm.com/docs/git-bundle)
+