Replaced button for a link with instructions to encode values

src/content/docs/synthetics/synthetic-monitoring/using-monitors/handle-sites-authentication.mdx

@@ -146,9 +146,7 @@ var password = encodeURIComponent('<var>password</var>');
 var url = '<var>https://</var>' + <var>username</var> + ':' + <var>password</var> + '<var>@site.com</var>';
 ```
 
-For ping and simple browser monitors, you can use the following form to encode your values:
-
-Encode Value
+To encode values for a ping or simple browser monitors, follow [these instructions](https://www.w3schools.com/tags/ref_urlencode.ASP).
 
 The full URL `http(s)://username:password@site.com` will be recorded as plain text in the corresponding synthetic's check data. The URL will be visible when viewing results for this monitor.