Update README.txt

Co-Authored-By: steveamaza <[email protected]>

Author: ibrahimlawal

README.txt

@@ -94,7 +94,7 @@ Yes you can! Join in on our [GitHub repository](https://github.com/PaystackHQ/wo
 == Changelog ==
 = 3.3.0 =
 * Major fixes to convenience fee option!
-* Now know as 'Additional Charge' to clarify it does not _always_ pass transaction fees
+* Now known as 'Additional Charge' to clarify it does not _always_ pass transaction fees
 * Now properly pass fee settings to both the frontend and backend
 * Now properly considers fee when it comes to quantified payments
 = 3.2.1 =