Add Davide Mendolia to the list of contributors

README.rst

@@ -161,4 +161,5 @@ Maintainers/contributors:
 * Mjumbe Poe - https://github.com/mjumbewu
 * Thomas Wajs - https://github.com/thomasWajs
 * Xavier Ordoquy - https://github.com/xordoquy
+* Davide Mendolia - https://github.com/davideme