Update README.md

'typo'
Other git users will receive:
"Please make sure you have the correct access rights
and the repository exists."

Author: vitvad

README.md

@@ -24,10 +24,10 @@ Or:
 
 ### Sublime Text 3
 
-1. Open the Sublime Text 2 Packages folder
+1. Open the Sublime Text 3 Packages folder
 2. clone this repo, but use the `st3` branch
 
-       git clone -b st3 git@github.com:colinta/SublimeFileDiffs
+       git clone -b st3 https://github.com/colinta/SublimeFileDiffs.git
 
 Add External Diff Tool
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