Tutorial: Embed google form to gather feedback

Help/guide/tutorial/Packaging Debug and Release.rst

@@ -84,3 +84,11 @@ custom configuration file with the ``config`` option:
 .. code-block:: console
 
   cpack --config MultiCPackConfig.cmake
+
+.. raw:: html
+
+  <iframe src="https://docs.google.com/forms/d/e/1FAIpQLSeh5tkDpniekWy5H5putQL
+  4FT_Z6DbNJZLsmZMBoCVCxDghZg/viewform?embedded=true"
+  width="640" height="605" frameborder="0" marginheight="0" marginwidth="0">
+  Loading…
+  </iframe>