Add language servers for structured text formats

vars/archlinux.yml

@@ -89,6 +89,16 @@ language_servers:
       server_name: 'pyright',
       auto_setup: false
     }
+  - {
+      package: marksman,
+      server_name: 'marksman',
+      auto_setup: true
+    }
+  - {
+      package: esbonio,
+      server_name: 'esbonio',
+      auto_setup: true
+    }
 
 python_download_url: 'https://www.python.org/ftp/python'
 python_versions: