Add section to ambiguous section of the contract docs

docs/web3.contract.rst

@@ -1450,6 +1450,12 @@ You can interact with the web3.py contract API as follows:
 Invoke Ambiguous Contract Functions
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 
+Calling overloaded functions can be done as you would expect. Passing arguments will
+disambiguate which function you want to call.
+
+If there is a need to first retrieve the function, you can use the contract instance's
+``get_function_by_signature`` method to get the function you want to call.
+
 Below is an example of a contract that has multiple functions of the same name,
 and the arguments are ambiguous. You can use the :meth:`Contract.get_function_by_signature`
 method to reference the intended function and call it with the correct arguments.