Added example of usage

Author: kompotkot

README.md

@@ -1,2 +1,20 @@
 # bugout-python
 Python client library for Bugout
+
+```python
+from bugout.user import User
+from bugout.group import Group
+from bugout.app import Bugout
+
+bugout = Bugout(url="http://localhost", port="433")
+bugout_user = User(bugout)
+bugout_group = Group(bugout)
+
+def main():
+    print(bugout_user.get_user(token="<user token>"))
+    print(bugout_group.get_group(group_id="<group id>",token="<user token>"))
+
+if __name__ == "__main__":
+    main()
+
+```