updating readme to include nightly build details

Author: MikeDX

README.md

@@ -4,3 +4,7 @@ Support files, demos etc for div games studio. Required to run the beta releases
 Unzip this repo into your div path (where d.exe or d-Linux is located) in order to run demo games and examples along the assets needed to run.
 
 This file will be updated as often as possible with the base set of assets needed to run div games studio 3 
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+Please check the nightly builds of DIV at http://div-arena.co.uk/ and report bugs on the forum
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