Add more instruction for adding and removing packages [skip ci]

README.rst

@@ -28,6 +28,14 @@ dependencies.  Once the file is modified, commit the changes to a **new
 branch**, with a suggestive name. Push the branch and merge it to the master
 (or ask it to be merged), via a standard merge request.
 
+**You have to** add this package to ``bob/bob`` and ``bob/docs`` repositories as well.
+
+Removing a Package
+------------------
+
+Once you remove a package from ``order.txt``, make sure to remove it from ``bob/bob``
+and ``bob/docs`` repositories as well.
+
 
 Contact
 -------