Update supported-fonts.mdx

Author: kathayl

src/content/docs/browser-rendering/reference/supported-fonts.mdx

@@ -60,5 +60,5 @@ Browser Rendering includes additional font packages for non-Latin scripts and em
 
 ## Notes
 
-- If your webpage specifies a font that is not supported yet, Chromium will fall back to a similar supported font. 
-- TBD based on answers to questions...
+- If your webpage specifies a font that is not supported yet, Chromium will automatically fall back to a similar supported font. 
+- If you would like to use a font that is not currently supported, reach out to us on [Cloudflare Discord](https://discord.cloudflare.com/).