Updating install via git instructions

INSTALL.md

@@ -3,12 +3,24 @@ Installation from GitHub via git
 
 You will need 'git' to be installed on the system.
 
-Read-only anonymous clone:
+Read-only anonymous clone (users):
 ------
+Use this method if you do not have write-access to the repository.  
+This is the best method if you just want to use the software.
+
     $ git clone https://github.com/tgharold/sync2usb.git
-    $ cd rsync2usb/
+    $ cd sync2usb/
+    $ git checkout master
+
+Developer clone:
+------
+Use this method if you have write-access to the repository.  
+
+    $ git clone [email protected]:tgharold/sync2usb.git
+    $ cd sync2usb/
     $ git checkout master
 
+
 Updating the local working copy:
 ------
     $ git fetch origin