Update README.md

-altered the layout a bit 
-added "Changelog" and "Citys" 
-renamed "Locations" to "Minor Locations" 
-added a note to "Spawnpoints", "Citys", "Minor Locations".
User: XDGrangerDX Date: 01/09/13 (DD/MM/JJ)
Merge pull request #2 from XDGrangerDX/patch-1

Update README.md, thanks XDGranderDX