Merge pull request #63 from SafetyCulture/ACT-1981

[ACT-1981] updated README.md

Author: weishan-liu

README.md

@@ -200,7 +200,9 @@ time actions were exported will be re-appended to the CSV file.
 - creatorId 
 - createdDatetime 
 - modifiedDatetime 
-- completedDatetime 
+- completedDatetime
+- site
+- title
 
 The fields `priorityCode` and `statusCode` are number values. All other fields are string values.  
 See [here](https://developer.safetyculture.io/#search-actions) for more information about the status codes and priority codes.