message: Update docs/ispc.rst
diff: @@ -831,7 +831,7 @@ This pragma is placed immediately before a loop statement.
  - Use
  * - ``#pragma unroll COUNT``
  - Directs the loop unroller to unroll the loop ``COUNT`` times.
  - - The parameter may optionally be enclosed in parentheses: ``#pragma unroll (COUNT)``.
  + The parameter may optionally be enclosed in parentheses: ``#pragma unroll (COUNT)``.
  * - ``#pragma unroll``
  - Directs the loop unroller to fully unroll the loop if possible.
  * - ``#pragma nounroll``
  