README.md in openbd_api-0.3.0 vs README.md in openbd_api-0.3.1

@@ -54,9 +54,13 @@
 ```
 $ openbd get 9784309226712
 $ openbd bulk_get 9784309226712 9784309226729
 $ openbd coverage
 $ openbd schema
+$ openbd --help
+Usage: openbd <method> [arguments] [options]
+    -v, --version  print the version
+    -h, --help     print help
 ```
 
 ## Contributing
 
 Bug reports and pull requests are welcome on GitHub at https://github.com/nasum/openbd. This project is intended to be a safe, welcoming space for collaboration, and contributors are expected to adhere to the [Contributor Covenant](http://contributor-covenant.org) code of conduct.