Update doc/user/workspace/index.md

doc/user/workspace/index.md

@@ -22,7 +22,7 @@ Our goal is to reach feature parity between SaaS and self-managed installations,
 NOTE:
 Workspace is currently in development.
 
-## Demo of introducing the new heirachy concept for groups and projects for epics
+## Demo of introducing the new hierarchy concept for groups and projects for epics
 
 <figure class="video_container">
   <iframe src="https://www.youtube.com/embed/fE74lsG_8yM" frameborder="0" allowfullscreen="true"> </iframe>