[gnome-shell] Add a link to supported releases in the README and bug template

[Marge Bot <marge-bot src gnome org>]

commit 9ebfd0874cabe9baeab5e2de7383ce84881d37f0
Author: Felix Divo <felix divo gmail com>
Date:   Tue Mar 2 14:36:16 2021 +0100

    Add a link to supported releases in the README and bug template
    
    Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/1246>

 .gitlab/issue_templates/Bug.md | 2 +-
 README.md                      | 2 ++
 2 files changed, 3 insertions(+), 1 deletion(-)
---
diff --git a/.gitlab/issue_templates/Bug.md b/.gitlab/issue_templates/Bug.md
index 10bb84c09b..2043fe4e4b 100644
--- a/.gitlab/issue_templates/Bug.md
+++ b/.gitlab/issue_templates/Bug.md
@@ -8,7 +8,7 @@ first to ensure that you create a clear and specific issue.
 <!--
 Provide at least the following information:
 * Your OS and version
-* Affected GNOME Shell version
+* Affected GNOME Shell version (see https://wiki.gnome.org/Schedule for currently supported versions)
 * Does this issue appear in XOrg and/or Wayland
 -->
 
diff --git a/README.md b/README.md
index a6bbb0a61e..7420bc3ac8 100644
--- a/README.md
+++ b/README.md
@@ -10,6 +10,7 @@ to build GNOME Shell from source and how to get involved with the project,
 see the [project wiki][project-wiki].
 
 Bugs should be reported to the GNOME [bug tracking system][bug-tracker].
+Please refer to the [*Schedule* wiki page][schedule] to see the supported versions.
 
 ## Contributing
 
@@ -25,4 +26,5 @@ version 2 or later. See the [COPYING][license] file for details.
 
 [project-wiki]: https://wiki.gnome.org/Projects/GnomeShell
 [bug-tracker]: https://gitlab.gnome.org/GNOME/gnome-shell/issues
+[schedule]: https://wiki.gnome.org/Schedule
 [license]: COPYING