Fix typo on hooks listing page

Change-Id: Ic3802d99cc1d3f2057830d6d7d53e8f5fa963397
diff --git a/src/main/resources/Documentation/hooks.md b/src/main/resources/Documentation/hooks.md
index 324f842..b7e092c 100644
--- a/src/main/resources/Documentation/hooks.md
+++ b/src/main/resources/Documentation/hooks.md
@@ -40,7 +40,7 @@
 be rejected.
 
 If the hook exits with non-zero return code the submit will be rejected and the
-ouput from the hook will be returned to the user.
+output from the hook will be returned to the user.
 
 ```
   submit --project <project name> --branch <branch> --submitter <submitter> --patchset <patchset id> --commit <sha1>