Revert "Merge branch 'fix-anchor-links' into 'master'"

This reverts merge request !101 (merged)

I had to revert this because that broke link in headings, for example:

### [Basics](basics.md)

Chat https://gitlab.slack.com/archives/C03MSG8B7/p1498780861559758

@winh @connorshea if you have any idea how to fix this, please share :)

@smcgivern sorry! https://gitlab.com/gitlab-com/gitlab-docs/issues/84 is still on I'm afraid.