chore: Remove unused make_release.sh script and update README.rst (#224)

Author: jason-famedly

README.rst

@@ -17,28 +17,10 @@ under an AGPL license.
 
 .. contents::
 
-Rebasing this fork
-==================
-
-TL;DR: There's a `./make_release.sh` script which does the things below.
-It currently doesn't handle rebase conflicts gracefully yet.
-
-This is the Famedly Fork of synapse. It applies a few patches, which need to
-be rebased upon every synapse release. To do this, the following workflow is used:
-
-- Checkout `master` of the fork, then `fetch -a` from the upstream
-
-- Rebase all commits (from our master) upon `upstream/master`: `git rebase upstream/master`
-
-- Switch to the `release-vM.m.f` branch (comes from upstream), and merge the
-  master into it using `git merge --ff-only master`. Then push the `release-*`
-  branch to the famedly-remote.
+Release process for this fork
+=============================
 
-- The CI is configured in a way that creating a tag on the `release-`-branch
-  will create a new release. The tag needs to have the form `v$originalSynapseVersion_$count`,
-  so `v1.29.0_1`, `v1.29.0_2` and so on - as content, we suggest `v$synapseVersion - $date`.
-  If we change our patchset after we already released a version of synapse, we force-push to
-  the `release-` branch and increase the counter and push a new tag.
+There is more information for Famedly employees in `Notion <https://www.notion.so/famedly/Synapse-Release-Process-2ae4c3a9792080428920cff83fb8bfaf>`__
 
 
 🛠️ Installation and configuration