update README.md file

Author: PapiHack

README.md

@@ -89,9 +89,7 @@ You can process the response as you wish by directly manipulating `\PayTech\ApiR
 ## TODO
 
 - tests: cover all use cases ✅
-- try to make a wrapper for IPN response
 - get the support team at [paytech.sn](https://paytech.sn) to clarify certain points
-- use mock instead of hitting real endpoint
 
 ## Contributing