Disable schedule trigger in spelling.yml

Comment out the schedule trigger for the spell checking workflow.

Author: oetiker

.github/workflows/spelling.yml

@@ -1,9 +1,9 @@
 name: Spell checking
 on:
   push:
-  schedule:
-    # * is a special character in YAML so you have to quote this string
-    - cron: '15 * * * *'
+  #schedule:
+  #  # * is a special character in YAML so you have to quote this string
+  #  - cron: '15 * * * *'
   workflow_dispatch:
     # Allow manually running the action, e.g. if disabled after some quietness in the source