fix CollectSubfields description

yaacovCR · yaacovCR · commit 77233df505e5 · 2023-01-14T18:22:11.000+02:00
This was using the same description as CollectRootFIelds!
diff --git a/spec/Section 6 -- Execution.md b/spec/Section 6 -- Execution.md
@@ -567,7 +567,7 @@ CollectRootFields(rootType, operationSelectionSet, variableValues):
 
 ### Object Subfield Collection
 
-Root field collection processes the operation's top-level selection set:
+Object subfield collection processes a field's sub-selection sets:
 
 CollectSubfields(objectType, fields, variableValues):
 
