Rename readme to README.md

readme → README.md

@@ -487,4 +487,4 @@ Added a function named RaiseLastOSError including a comment
 - Changed declarations of GLU_TRUE/GLU_FALSE for compatbility with ByteBool (SW)
 - Added Exception mask settings for 64-Bit (SetExceptionMask) (SW)
 - Changed 64-Bit detection for FPC
-- Added TVector3f for backwards compatibility
+- Added TVector3f for backwards compatibility