Include link to easily generate GH PAT (#511)

Include a direct link to the "new token generation" page on GitHub to
simplify the process for users.

docs/config-file-options.md

@@ -22,7 +22,7 @@ Example:
 #### `accessToken` **required**
 
 Personal access token.
-Access tokens can be created here: https://github.com/settings/tokens
+Access tokens can be created in the [GitHub Developer Settings, Personal Access Tokens, Tokens (classic)](https://github.com/settings/tokens/new?description=backport%20cli&scopes=repo,workflow)
 
 Please select the necessary access scopes: