feat(cloudflare): Add jsonc instructions for sourcemaps upload (#13572)

Author: AbhiPrasad

docs/platforms/javascript/guides/cloudflare/index.mdx

@@ -139,7 +139,17 @@ Depending on how you've set up your project, the stack traces in your Sentry err
 
 To fix this, upload your source maps to Sentry.
 
-To start, add `upload_source_maps = true` to your `wrangler.toml` file to enable source map uploading.
+To start, set the `upload_source_maps` option to `true` in your wrangler config file to enable source map uploading.
+
+```jsonc {tabTitle:JSON} {filename:wrangler.jsonc}
+{
+  "upload_source_maps": true,
+}
+```
+
+```toml {tabTitle:Toml} {filename:wrangler.toml}
+upload_source_maps = true
+```
 
 Then run the Sentry Wizard to finish your setup: