feat: Define rich meta options (#1654)

Co-authored-by: Alan Dooley <[email protected]>

Author: TasoOneAsia

config/_default/config.toml

@@ -44,6 +44,7 @@ enableGitInfo = true
 
 [params]
   useSectionPageLists = "false"
+  description = "Learn how to deliver, manage, and protect your applications using F5 NGINX products."
   buildtype = "webdocs"
   RSSLink = "/index.xml"
   author = "NGINX Inc." # add your company name
@@ -53,6 +54,11 @@ enableGitInfo = true
     "taxonomy",
     "taxonomyTerm"
   ]
+  [params.rich_meta]
+    thumbnail = "/images/nginx-documentation-500x300.png"
+    thumbnail_res = "500x300"
+    twitter_username = "@nginx"
+    fb_publisher = "https://www.facebook.com/f5incorporated/"
   taxonomiesExcludedFromSitemap = ["tags", "categories", "doctypes"]
   unitversion= "1.34.1"
   unitversionv= "v1.34.1"