remove confusing outdated note on interactive rebasing

Author: xabbuh

contributing/code/patches.rst

@@ -373,7 +373,7 @@ patch. Before re-submitting the patch, rebase with ``upstream/master`` or
 
 .. note::
 
-    when doing a ``push --force``, always specify the branch name explicitly
+    When doing a ``push --force``, always specify the branch name explicitly
     to avoid messing other branches in the repo (``--force`` tells Git that
     you really want to mess with things so do it carefully).
 
@@ -385,8 +385,7 @@ convert many commits to one commit. To do this, use the rebase command:
     $ git rebase -i upstream/master
     $ git push -f origin BRANCH_NAME
 
-The number 3 here must equal the amount of commits in your branch. After you
-type this command, an editor will popup showing a list of commits:
+After you type this command, an editor will popup showing a list of commits:
 
 .. code-block:: text