Updated broken link

Related to: https://gitlab.com/gitlab-org/technical-writing/-/issues/353

doc/administration/raketasks/github_import.md

@@ -19,7 +19,7 @@ before/after the brackets. Also, some shells (for example, `zsh`) can interpret
 
 ## Caveats
 
-If the GitHub [rate limit](https://developer.github.com/v3/#rate-limiting) is reached while importing,
+If the GitHub [rate limit](https://docs.github.com/v3/#rate-limiting) is reached while importing,
 the importing process waits (`sleep()`) until it can continue importing.
 
 ## Importing multiple projects