fix: typo in doc header (#2433)

documentation/nextjs/faqs/error-handling.md

@@ -1,15 +1,13 @@
-# Injecting Browser Agent
+# Error Handling
 
 Q: How can I get the Next.js instrumentation to log errors to [New Relic Errors Inbox](https://docs.newrelic.com/docs/errors-inbox/errors-inbox/)?
 
 A: The Node.js agent has an API to log errors `newrelic.noticeError`. Next.js has an error page that can be used to add the API call. 
 
-
 ## Log errors to Errors Inbox
 
 The error page varies between [Pages Router](https://nextjs.org/docs/pages/building-your-application/routing/custom-error) and [App Router](https://nextjs.org/docs/app/building-your-application/routing/error-handling) Next.js projects.
 
-
- * [Pages Router](https://github.com/newrelic/newrelic-node-examples/blob/e118117470ae9f9038c60d8a171a6f0d440f6291/nextjs-legacy/pages/_error.jsx) error handling example.
+* [Pages Router](https://github.com/newrelic/newrelic-node-examples/blob/e118117470ae9f9038c60d8a171a6f0d440f6291/nextjs-legacy/pages/_error.jsx) error handling example.