add youtube link + github button to navbar

Signed-off-by: Jess Chitas <36636982+jessicachitas@users.noreply.github.com>

Author: jessicachitas

docusaurus.config.js

@@ -100,11 +100,11 @@ const config = {
             position: "left",
             label: "Docs",
           },
-          { to: "/blog", label: "Blog", position: "left" },
+          { to: "https://www.youtube.com/@flightctl", label: "YouTube", position: "left" },
           {
-            href: "https://github.com/flightctl/flightctl/tree/main",
-            label: "GitHub",
-            position: "right",
+            type: 'html',
+            position: 'right',
+            value: '<iframe src="https://ghbtns.com/github-btn.html?user=flightctl&repo=flightctl&type=star&count=true&size=large" frameborder="0" scrolling="0" width="170" height="30" title="GitHub Star" style="vertical-align: middle;"></iframe>',
           },
         ],
       },
@@ -148,7 +148,8 @@ const config = {
               },
               {
                 label: "GitHub",
-                href: "https://github.com/facebook/docusaurus",
+                href: "https://github.com/flightctl/flightctl",
+                icon: "github",
               },
             ],
           },