Update README.md

README.md

@@ -191,7 +191,7 @@ Output:
 {"categories":{"columns":["name"],"records":[["Web development"],["Internet"]]}}
 ```
 
-NB: Columns that are used to identify relations are automatically added and cannot be left out.
+NB: Columns that are used to include related entities are automatically added and cannot be left out.
 
 ### List + Order