added in metatags.io

quick fix

Author: dino475

settings/seo.mdx

@@ -70,7 +70,10 @@ You can also specify `noindex` for all pages in your docs by setting the `metada
 ```
 
 ## Common Meta Tags Reference
-Add any number of the following meta tags to your `docs.json`:
+Below is a comprehensive list of meta tags you can add to your `docs.json`. These meta tags help improve your site's SEO, social sharing, and browser compatibility.
+
+You can preview how your meta tags will appear on different platforms using [metatags.io](https://metatags.io/).
+
 ```json
 "seo": {
     "metatags": {
@@ -162,4 +165,5 @@ Add any number of the following meta tags to your `docs.json`:
       "video:series": "Series Name"
   }
 }
-```
+```
+