Merge branch 'master' of https://github.com/google/google-api-ruby-cl…

…ient

README.md

@@ -139,7 +139,7 @@ to replace. For example:
 
 ```ruby
 file = {id: '123', title: 'My document', labels: { starred: true }}
-file = drive.insert_file(file) # Returns a Drive::File instance
+file = drive.create_file(file, {}) # Returns a Drive::File instance
 ```
 
 is equivalent to:
@@ -150,6 +150,15 @@ file.labels = Drive::File::Labels.new(starred: true)
 file = drive.update_file(file) # Returns a Drive::File instance
 ```
 
+IMPORTANT: Be careful when supplying hashes for request objects. If it is the last argument to a method, ruby will interpret the hash as keyword arguments. To prevent this, appending an empty hash as an extra parameter will avoid misinterpretation.
+
+```ruby
+file = {id: '123', title: 'My document', labels: { starred: true }}
+file = drive.create_file(file) # Raises ArgumentError: unknown keywords: id, title, labels
+file = drive.create_file(file, {}) # Returns a Drive::File instance
+```
+
+
 ## Authorization
 
 [OAuth 2](https://developers.google.com/accounts/docs/OAuth2) is used to authorize applications. This library uses