message: Fix typos in the documentation for cv::Mat.
diff: @@ -660,7 +660,7 @@ sub-matrices.
  - Use MATLAB-style array initializers, zeros(), ones(), eye(), for example:
  @code
  - // create a double-precision identity martix and add it to M.
  + // create a double-precision identity matrix and add it to M.
  M += Mat::eye(M.rows, M.cols, CV_64F);
  @endcode
  