Update release process (#1548)

Author: kevgo

documentation/DEVELOPMENT.md

@@ -67,9 +67,12 @@ versions.
 
 ## Deployment
 
-- `yarn run json-schema && make fix` in the root folder and ship
-- bump the versions by running `lerna version <patch|minor|major> --no-private`
-- make a global search-and-replace for "7.0.0" and "0.2.1" replace it with the
-  new version
-- get this change into the `main` branch
+- on a branch:
+  - `yarn run json-schema && make fix` in the root folder and ship
+  - bump the versions by running `lerna version <patch|minor> --no-private` or
+    by updating the versions manually if bumping the major version
+  - make a global search-and-replace for "7.0.0" and "0.2.1" replace it with the
+    new version
+  - ship this branch
+- `git town sync --all && git tag 7.0.0 && git push --tags`
 - run <code type="make/command" dir="..">make publish</code>