fix more typos

contrib/style.txt

@@ -37,7 +37,7 @@ APIs:
 Dependency Injection (DI):
 DI is a useful pattern when components need to be replaced by mocks or have
 multiple co-existing implementations.  But DI also makes code overly generic,
-bureaucratic and less readble.  Only use DI if there is a definite need for it,
+bureaucratic and less readable.  Only use DI if there is a definite need for it,
 do not use it by default.  Inject individual dependencies via class
 constructors and avoid service locators.
 

packages/taler-wallet-webextension/src/pages/refund.tsx

@@ -89,7 +89,7 @@ export function createRefundPage(): JSX.Element {
 
   const talerRefundUri = url.searchParams.get("talerRefundUri");
   if (!talerRefundUri) {
-    throw Error("taler refund URI requred");
+    throw Error("taler refund URI required");
   }
 
   return <RefundStatusView talerRefundUri={talerRefundUri} />;