Shared: minor updates to comments

python/ql/lib/semmle/python/frameworks/data/internal/ApiGraphModels.qll

@@ -722,7 +722,7 @@ module ModelOutput {
       result = "Invalid token '" + token + "' is missing its arguments, in access path: " + path
     )
     or
-    // Check for valid model kinds
+    // Check for invalid model kinds
     result = getInvalidModelKind()
   }
 }

python/ql/lib/semmle/python/frameworks/data/internal/SharedModelValidation.qll

@@ -1,7 +1,7 @@
 /**
  * INTERNAL: Do not use.
  *
- * Provides classes and predicates related to validating models as data rows.
+ * Provides classes and predicates related to validating models-as-data rows.
  * Such that we can share this logic across our CodeQL analysis of different languages.
  */