howto/git.md

@@ -308,6 +308,13 @@ although that one doesn't use the proper verb tenses
 
 #### TPA part: lock down the repository and add redirections
 
+This part handles the server side of things. It will install a
+`pre-receive` hook in the Git repository to forbid pushes,
+redirections in the Git web interfaces, and document the change in
+gitolite.
+
+It assumes the repository has already been migrated.
+
  4. make an (executable) `pre-receive` hook in `git-rw` with an exit
     status of `1` warning about the new code location, this can be
     done with this Fabric command: