Improve GitLab for Jira app description in the Atlassian Marketplace
The app is getting bad reviews because a lot of users are using it improperly. We have also received a lot of feedback that it is not clear that this app is for GitLab.com only.
We should improve the app description to avoid confusion.
This is related to the doc work we're doing in !26104 (merged)
cc @deuley @Andysoiron @edmondchan