add more social link

Author: datamweb

mkdocs.yml

@@ -41,9 +41,19 @@ extra:
   generator: false
 
   social:
-    - icon: fontawesome/brands/github
+    - icon: material/github
       link: https://github.com/codeigniter4/shield
       name: GitHub
+    - icon: material/twitter
+      link: https://twitter.com/CodeIgniterPhp
+      name: X
+    - icon: material/forum
+      link: https://forum.codeigniter.com
+      name: Forum Codeigniter
+    - icon: material/slack
+      link: https://join.slack.com/t/codeigniterchat/shared_invite/zt-244xrrslc-l_I69AJSi5y2a2RVN~xIdQ
+      name: Slack
+      
 
 repo_url: https://github.com/codeigniter4/shield
 edit_uri: edit/develop/docs/