Link to the issue templates in Contributing guide

.gitlab/issue_templates/Bug.md

-## Summary
+### Summary
 
 (Summarize the bug encountered concisely)
 
-## Steps to reproduce
+### Steps to reproduce
 
 (How one can reproduce the issue - this is very important)
 
-## Expected behavior
+### Expected behavior
 
 (What you should see instead)
 
-## Actual behaviour
+### Actual behaviour
 
 (What actually happens)
 
-## Relevant logs and/or screenshots
+### Relevant logs and/or screenshots
 
 (Paste any relevant logs - please use code blocks (```) to format console output,
 logs, and code as it's very hard to read otherwise.)
 
-## Output of checks
+### Output of checks
 
-### Results of GitLab Application Check
+#### Results of GitLab application Check
 
 (For installations with omnibus-gitlab package run and paste the output of:
-sudo gitlab-rake gitlab:check SANITIZE=true)
+`sudo gitlab-rake gitlab:check SANITIZE=true`)
 
 (For installations from source run and paste the output of:
-sudo -u git -H bundle exec rake gitlab:check RAILS_ENV=production SANITIZE=true)
+`sudo -u git -H bundle exec rake gitlab:check RAILS_ENV=production SANITIZE=true`)
 
 (we will only investigate if the tests are passing)
 
-### Results of GitLab Environment Info
+#### Results of GitLab environment info
 
 (For installations with omnibus-gitlab package run and paste the output of:
-sudo gitlab-rake gitlab:env:info)
+`sudo gitlab-rake gitlab:env:info`)
 
 (For installations from source run and paste the output of:
-sudo -u git -H bundle exec rake gitlab:env:info RAILS_ENV=production)
+`sudo -u git -H bundle exec rake gitlab:env:info RAILS_ENV=production`)
 
-## Possible fixes
+### Possible fixes
 
 (If you can, link to the line of code that might be responsible for the problem)

.gitlab/issue_templates/Feature Proposal.md

-## Description
-Include problem, use cases, benefits, and/or goals
+### Description
 
-## Proposal
+(Include problem, use cases, benefits, and/or goals)
 
-## Links / references
+### Proposal
+
+### Links / references

CONTRIBUTING.md

@@ -144,7 +144,7 @@ code snippet right after your description in a new line: `~"feature proposal"`.
 Please keep feature proposals as small and simple as possible, complex ones
 might be edited to make them small and simple.
 
-Please submit Feature Proposals using the 'Feature Proposal' issue template provided on the issue tracker.
+Please submit Feature Proposals using the ['Feature Proposal' issue template](.gitlab/issue_templates/Feature Proposal.md) provided on the issue tracker.
 
 For changes in the interface, it can be helpful to create a mockup first.
 If you want to create something yourself, consider opening an issue first to
@@ -157,7 +157,7 @@ submitting your own, there's a good chance somebody else had the same issue or
 feature proposal. Show your support with an award emoji and/or join the
 discussion.
 
-Please submit bugs using the 'Bug' issue template provided on the issue tracker.
+Please submit bugs using the ['Bug' issue template](.gitlab/issue_templates/Bug.md) provided on the issue tracker.
 The text in the parenthesis is there to help you with what to include. Omit it
 when submitting the actual issue. You can copy-paste it and then edit as you
 see fit.