peer review update: reword reference to compatible wallets

Co-authored-by: Sid Vishnoi <[email protected]>

docs/testing/testplan.md

@@ -27,7 +27,7 @@ Below is a list of the available wallet providers if you want to use real money:
 - [GateHub](https://gatehub.net/mobile)
 
 Wallet availability in a specific country, or availability in particular currency depends on the wallet provider.  
-Learn more about the providers for [Web Monetization compatible wallets here](https://webmonetization.org/docs/resources/op-wallets/).
+We maintain a list of [Web Monetization compatible wallets](https://webmonetization.org/docs/resources/op-wallets/).
 
 #### Test Digital Wallet