Remove grave accents (`) from header texts (#1493)
Remove grave accents (`) from header texts (#1493)

The ` punctuation in header texts are breaking anchor links. The anchor links are being rendered with a
code prefix and suffix by "probot/probot.github.io", Eg. #use-coderuncode.

I've removed the ` punctuations from the header texts to fix this.
probot/probot,probot/probot,probot/probot