Fix basic_adding example

PR #80 deleted a couple lines

Author: traderben

examples/basic_adding.py

@@ -219,8 +219,10 @@ def refresh_position(self) -> None:
 
 
 def main():
+    # Setting this to logging.DEBUG can be helpful for debugging websocket callback issues
     logging.basicConfig(level=logging.INFO)
-    address, info, exchange = example
+    address, info, exchange = example_utils.setup(constants.TESTNET_API_URL)
+    BasicAdder(address, info, exchange)
 
 if __name__ == "__main__":
     main()