Exclude comments from specific docs

doc/university/training/topics/additional_resources.md

-## Additional Resources
+---
+comments: false
+---
+
+# Additional Resources
 1. GitLab Documentation [http://docs.gitlab.com](http://docs.gitlab.com/)
 2. GUI Clients [http://git-scm.com/downloads/guis](http://git-scm.com/downloads/guis)

doc/university/training/topics/agile_git.md

+---
+comments: false
+---
+
 # Agile and Git
 ----------

doc/university/training/topics/bisect.md

+---
+comments: false
+---
+
 # Bisect	  	
 ----------

doc/university/training/topics/cherry_picking.md

+---
+comments: false
+---
+
 # Cherry Pick
 ----------

doc/university/training/topics/env_setup.md

+---
+comments: false
+---
+
 # Configure your environment
 ----------

doc/university/training/topics/explore_gitlab.md

+---
+comments: false
+---
+
 # Explore GitLab projects
 ----------

doc/university/training/topics/feature_branching.md

+---
+comments: false
+---
+
 # Feature branching
 ----------

doc/university/training/topics/getting_started.md

+---
+comments: false
+---
+
 # Getting Started
 ----------

doc/university/training/topics/git_add.md

+---
+comments: false
+---
+
 # Git Add
 ----------

doc/university/training/topics/git_intro.md

+---
+comments: false
+---
+
 # Git introduction
 ----------

doc/university/training/topics/git_log.md

+---
+comments: false
+---
+
 # Git Log
 ----------

doc/university/training/topics/gitlab_flow.md

+---
+comments: false
+---
+
 # GitLab Flow
 ----------

doc/university/training/topics/merge_conflicts.md

+---
+comments: false
+---
+
 # Merge conflicts
 ----------

doc/university/training/topics/merge_requests.md

+---
+comments: false
+---
+
 # Merge requests
 ----------

doc/university/training/topics/rollback_commits.md

+---
+comments: false
+---
+
 # Rollback Commits
 ----------

doc/university/training/topics/stash.md

+---
+comments: false
+---
+
 # Git Stash
 ----------

doc/university/training/topics/subtree.md

-## Subtree
-----------
-
-## Subtree
+---
+comments: false
+---
+# Subtree
 * Used when there are nested repositories.
 * Not recommended when the amount of dependencies is too large

doc/university/training/topics/tags.md

+---
+comments: false
+---
+
 # Tags
 ----------

doc/university/training/topics/unstage.md

+---
+comments: false
+---
+
 # Unstage
 ----------

doc/university/training/user_training.md

+---
+comments: false
+---
+
 # GitLab Git Workshop
 ---