🐳 Add Dockerfile and update config.toml

- Add Dockerfile to containerize the Hugo site
- Update config.toml with new menu items and social links

config.toml

@@ -12,6 +12,8 @@ enableEmoji = true
 enableTwemoji = true
 enableGitInfo = true
 
+[markup.highlight]
+style = "github-dark"
 
 [params] # theme parameters
     author = "Eric X. Liu"
@@ -40,17 +42,17 @@ enableGitInfo = true
 # Social links
 [[params.social]]
     name = "Git"
-    icon = "fa fa-git"
+    icon = "fa-brands fa-git fa-2x"
     weight = 1
     url = "https://git.ericxliu.me/eric"
 [[params.social]]
     name = "linkedin"
-    icon = "fa fa-linkedin"
+    icon = "fa-brands fa-linkedin fa-2x"
     weight = 2
     url = "https://www.linkedin.com/in/eric-x-liu-46648b93/"
 [[params.social]]
     name = "Personal email"
-    icon = "fa fa-envelope"
+    icon = "fa fa-envelope fa-2x"
     weight = 3
 
 # Menu links