Remove relative link

It wouldn't work on doc.gitlab.com [ci skip]

Remove relative link
9eeda3da · Achilleas Pipinellis · 3db8cfef · 9eeda3da
Commit 9eeda3da authored 9 years ago by Achilleas Pipinellis
--- a/doc/api/system_hooks.md
+++ b/doc/api/system_hooks.md
@@ -3,7 +3,7 @@
 All methods require admin authorization.
  
 The URL endpoint of the system hooks can also be configured using the UI in
-[the admin area under hooks](/admin/hooks).
+the admin area under hooks(`/admin/hooks`).
  
 ## List system hooks