Edit GitLab Issue Board

replace/trello.md

@@ -19,7 +19,7 @@ An Open-Source, zero-knowledge, collaborative document editor, with a simple, ba
 
 ## GitLab Issue Board
 
-GitLab's official issue (and projects) management board.
+GitLab's official project management board. This is only a viable replacement if your code is hosted in a GitLab instance.
 
 {% infobox %}
   - **Website**: [doc.gitlab.com](https://docs.gitlab.com/ce/user/project/issue_board.html)