message: fixed documentation formatting
diff: @@ -42,8 +42,5 @@ We specify the size-related attributes as:
  ```
  END
  }
  - summary: <<END
  -Extract `patches` from `input` and put them in the "depth" output
  -dimension. 3D extension of `extract_image_patches`.
  -END
  + summary: "Extract `patches` from `input` and put them in the \"depth\" output dimension. 3D extension of `extract_image_patches`."
  }
  