Known issues for the "about" notice

Summary

The "about" notice in the application should contain information on known issues prior to a release of the package.

These known issues also need to be part of the generated documentation.

Relevant issue(s) fixed

Fixes #252 (closed)

beat/editor/widgets/mainwindow.py

@@ -96,7 +96,8 @@ class MainWindow(QMainWindow):
                 f"{qApp.applicationName()}<br>"
                 f"Version: {qApp.applicationVersion()}<br>"
                 "Copyright Idiap Research Institute<br>"
-                "<a target='_blank' href='https://icons8.com/icons/set/docker'>Docker</a> icon by <a target='_blank' href='https://icons8.com'>Icons8</a>"
+                "List of <a target='_blank' href='https://gitlab.idiap.ch/beat/beat.editor/blob/master/doc/known_issues.rst'>known issues</a><br>"
+                "<a target='_blank' href='https://icons8.com/icons/set/docker'>Docker</a> icon by <a target='_blank' href='https://icons8.com'>Icons8</a><br>"
                 "<a target='_blank' href='https://icons8.com/icons/set/cloud-development'>Cloud Development</a> icon by <a target='_blank' href='https://icons8.com'>Icons8</a>"
             ),
         )