Update stale.yml

.github/stale.yml

@@ -11,7 +11,7 @@ exemptLabels:
   - possible feature
   - planned
   - in progress
-  - enchancement
+  - enhancement
 # Label to use when marking an issue as stale
 staleLabel: wontfix
 # Comment to post when marking an issue as stale. Set to `false` to disable
@@ -20,4 +20,4 @@ markComment: >
   recent activity. It will be closed if no further activity occurs. Thank you
   for your contributions.
 # Comment to post when closing a stale issue. Set to `false` to disable
-closeComment: false
+closeComment: false