grammer

Author: damienbod

aspnetcore/security/authentication/configure-jwt-bearer-authentication.md

@@ -290,7 +290,7 @@ Integration tests and containers with access tokens can be used to test secure A
 > [!WARNING]
 > Ensure that security problems are **not** introduced into the API for testing purposes. Testing becomes more challenging when delegated access tokens are used, as these tokens can only be created through a UI and an OpenID Connect flow. If a test tool is used to create delegated access tokens, security features must be disabled for testing. It's essential that these features are only disabled in the test environment.
 
-Create dedicated and isolated test environments where security features can safely be disable or modified. Ensure these changes are strictly limited to the test environment.
+Create dedicated and isolated test environments where security features can safely be disabled or modified. Ensure these changes are strictly limited to the test environment.
 
 ### Use Swagger UI, Curl and other API UI tools