Add documentation about GObject Introspection GIR generation
Submitted by Daniel Espinosa Ortiz
Assigned to mal..@..db.org
From e-mail to email@example.com sent by Vivien Malerba:
"... please add some doc (even as a README.GIR file for example) to tell how and when GIR files are generated, checked, updated, validated, whatever, so that other developers can understand what's going on."