Merge pull request #659 from twekberg/patch-1

GIT Submodules section missing a step.

Author: ben

book/07-git-tools/sections/submodules.asc

@@ -126,6 +126,13 @@ $ git commit -am 'added DbConnector module'
 Notice the `160000` mode for the `DbConnector` entry.
 That is a special mode in Git that basically means you’re recording a commit as a directory entry rather than a subdirectory or a file.
 
+Lastly, push these changes:
+
+[source,console]
+----
+$ git push origin master
+----
+
 [[_cloning_submodules]]
 ==== Cloning a Project with Submodules