Update src/content/docs/identityserver/upgrades/identityserver4-to-duende-identityserver-v7.mdx

Co-authored-by: Maarten Balliauw <[email protected]>

Author: khalidabuhakmeh

src/content/docs/identityserver/upgrades/identityserver4-to-duende-identityserver-v7.mdx

@@ -161,7 +161,7 @@ A couple of compilation errors and required changes you may encounter:
   + if (context.IsNativeClient())
   ```
 
-* The name `ProcessLoginCallbackForOidc`doesn’t exist in the current context:
+* The name `ProcessLoginCallbackForOidc` doesn’t exist in the current context:
 
   ```diff lang="csharp" title="*.cs"
   - ProcessLoginCallbackForOidc(result, additionalLocalClaims, localSignInProps);