Update supported-fonts.mdx

need to update with link to below for custom

Author: kathayl

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

@@ -8,7 +8,7 @@ import { Tabs, TabItem } from "~/components";
 
 Browser Rendering uses a managed Chromium environment that includes a standard set of fonts. When you generate a screenshot or PDF, text is rendered using the fonts available in this environment.
 
-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/).
+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, you can add below ADD LINK, reach out to us on [Cloudflare Discord](https://discord.cloudflare.com/).
 
 ## Generic CSS font family support
 
@@ -156,4 +156,4 @@ await page.addStyleTag({
 });
 ```
 
-</TabItem> </Tabs>
+</TabItem> </Tabs>