message: Document RESHAPE support in XNNPACK delegate
diff: @@ -253,6 +253,13 @@ Below is the list of current operators and limitations:
  * Inputs and outputs must be in 32-bit floating-point format.
  +### `RESHAPE`
  +
  +* The first input and the output must be in 32-bit floating-point format.
  +* The second input (the input with the new shape specification) must be either
  + static (use `kTfLiteMmapRo` allocation type), or absent (with the new shape
  + specified via `ReshapeOptions` table).
  +
  ### `ROUND`
  * Inputs and outputs must be in 32-bit floating-point format.
  