Update NEWS.

NEWS.txt

@@ -11,7 +11,7 @@ This release extends the 0.9.0rc1 and announces the upcoming final release 0.9.
 Highlights (since 0.9.0rc1):
  - Fixed dnn conv grad issues
  - Allowed pooling of empty batch
- - Use of 64-bit indices in sparse.AddSD where necessary
+ - Use of 64-bit indexing in sparse ops to allow matrix with more then 2\ :sup:`31`\ -1 elements.
  - Removed old benchmark directory
  - Crash fixes, bug fixes, warnings improvements, and documentation update
 

NEWS_DEV.txt

@@ -105,7 +105,7 @@ Others:
 
 
 Other more detailed changes:
- - Use of 64-bit indices in sparse.AddSD where necessary
+ - Use of 64-bit indexing in sparse ops to allow matrix with more then 2\ :sup:`31`\ -1 elements.
  - Allow more then one output to be an destructive inplace
  - Add flag profiling.ignore_first_call, useful to profile the new gpu back-end
  - Doc/error message fixes/updates