Improve .gitlab/issue_templates/Offboarding.md

• Link to referenced files in the git repo.
• Use new issue URLs that preselect the issue template.
• Add dev and TU private IRC channels.

added 11 commits

• ca45e981...354fa9ed - 10 commits from branch archlinux:master
• f8983b00 - Improve .gitlab/issue_templates/Offboarding.md

Compare with previous version

added 3 commits

• f8983b00...49c789b1 - 2 commits from branch archlinux:master
• b7825928 - Improve .gitlab/issue_templates/Offboarding.md

Compare with previous version

added 3 commits

• b7825928...778d3ab6 - 2 commits from branch archlinux:master
• 3f44d0c8 - Improve .gitlab/issue_templates/Offboarding.md

Compare with previous version

resolved all threads

added 1 commit

• c352a697 - Improve .gitlab/issue_templates/Offboarding.md

Compare with previous version

added 1 commit

• 998b8b54 - Improve .gitlab/issue_templates/Offboarding.md

Compare with previous version

added 1 commit

• d47c558c - Improve .gitlab/issue_templates/Offboarding.md

Compare with previous version

mentioned in commit 00723fa3

merged