Clarify customization instructions in README.md

It isn't explicitly stated that new users must create their own fork if they want to be able to commit and track their changes via Github.

README.md

@@ -63,9 +63,10 @@ accompanying README files to learn of what is available.
 Customization
 -------------
 
-The project is managed via [Git][3]. It is highly recommend that you commit
+The project is managed via [Git][3]. It is highly recommend that you fork this 
-your changes and push them to [GitHub][4] to not lose them. If you do not know
+project so that you can commit your changes and push them to [GitHub][4] to not
-how to use Git, follow this [tutorial][5] and bookmark this [reference][6].
+lose them. If you do not know how to use Git, follow this [tutorial][5] and 
+bookmark this [reference][6].
 
 Resources
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