Update README to reflect renaming

Author: tapestry-aang01

README.md

@@ -1,18 +1,18 @@
 # Google doc revision analytics
 Prototyping tools to extract and analyze google doc revision history data.
 
-Example usage of gdoc_revisions module:
+Example usage of gdocrevisions module:
 ```
 from oauth2client.service_account import ServiceAccountCredentials
-import gdoc_revisions
+import gdocrevisions
 
 CREDENTIAL_FILE = 'my-credentials.json'
 FILE_ID = 'abcdefg12345'
 
 scope = ['https://www.googleapis.com/auth/drive']
 credentials = ServiceAccountCredentials.from_json_keyfile_name(CREDENTIAL_FILE, scope)
 
-gdoc = gdoc_revisions.GoogleDoc(FILE_ID, credentials)
+gdoc = gdocrevisions.GoogleDoc(FILE_ID, credentials)
 
 gdoc.metadata
 gdoc.revisions