adding note for git version requirement

Author: Michael Kimsal

README.md

@@ -31,6 +31,8 @@ To start cloud9 and install all submodules you can use the quickstart options fo
     $ bin/cloud9-lin32
     > bin\cloud9-win32.bat
 
+Note you'll need a git version higher than 1.6.1 to use the stock shell script provided.
+
 If you want to start it manually try:
 
     $ node bin/cloud9.js
@@ -92,4 +94,4 @@ Thanks to all developers and contributors of these projects!
 
 ## License
 
-The GPL version 3, read it at [http://www.gnu.org/licenses/gpl.txt](http://www.gnu.org/licenses/gpl.txt)
+The GPL version 3, read it at [http://www.gnu.org/licenses/gpl.txt](http://www.gnu.org/licenses/gpl.txt)