Update cylc/flow/cfgspec/workflow.py

Co-authored-by: Ronnie Dutta <[email protected]>

cylc/flow/cfgspec/workflow.py

@@ -808,9 +808,8 @@ def get_script_common_text(this: str, example: Optional[str] = None):
             until their previous (cycle point) instance is satisfied.
             Otherwise, they will all spawn at once out to the runahead limit.
 
-            This setting can be overridden by a reserved keyword argument in
-            individual xtrigger declarations, or in xtrigger function
-            definitions.
+            This setting can be overridden by the reserved keyword argument
+            ``sequential`` in individual xtrigger declarations.
 
             One sequential xtrigger on a parentless task with multiple
             xtriggers will cause sequential behavior.