Update entity-metadata.md

found default column1 and column2 headings in a table. Replaced them with the expected values.

Author: JimDaly

powerapps-docs/developer/common-data-service/entity-metadata.md

@@ -166,7 +166,7 @@ Some entities will have different sets of options.
 **Example**: `PhoneCall` entity `StateCode` and `StatusCode` options
 
 
-|Column1  |Column2  |
+|`StateCode`|`StatusCode`|
 |---------|---------|
 |0 : Open|1: Open|
 |1 : Completed|2: Made <br />4: Received|
@@ -181,4 +181,4 @@ More information:
 
 ### See also
 
-[Common Data Service for Apps entities](entities.md)
+[Common Data Service for Apps entities](entities.md)