Link to Exporting projects in Finishing up page of Your first 2D game

After finishing your first game, you may want to share it for others
to try it out without needing to install Godot.

getting_started/first_2d_game/07.finishing-up.rst

@@ -121,3 +121,14 @@ achieved.
 
 And when you're ready, you can move on to :ref:`doc_your_first_3d_game` to learn
 to create a complete 3D game from scratch, in Godot.
+
+Sharing the finished game with others
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+If you want people to try out your game without having to install Godot, you'll
+need to export the project for each operating system you want the game to be
+playable on. See :ref:`doc_exporting_projects` for instructions.
+
+After exporting the project, compress the exported executable and PCK file (not
+the raw project files) to a ZIP file, then upload this ZIP file to a file
+sharing website.