Support uses SP not SE

source/handbook/engineering/performance/index.html.md

@@ -167,7 +167,7 @@ revision, new revision, and ref (e.g. tag or branch) name.
 To clarify the priority of issues that relate to GitLab.com's availability and
 performance consider adding an _Availability and Performance Priority Label_,
 `~AP1` through `~AP3`. This is similar to what is in use in the Support and
-Security teams, they use `~SE` and `~SL` labels respectively to indicate
+Security teams, they use `~SP` and `~SL` labels respectively to indicate
 priority.
 Use the following as a guideline to determine which Availability and Performance