fixed stuff and added ability to change server name in tablist

target/classes/plugin.yml

@@ -6,10 +6,16 @@ description: Displays server performance metrics
 commands:
   serverinfo:
     description: Shows server performance metrics
-    usage: /<command>
+    usage: |
+      /<command> - Shows server information
+      /<command> settitle <title> - Sets the server title
+      /<command> reload - Reloads the configuration
     aliases: [sinfo, si]
     permission: serverinfo.use
 permissions:
   serverinfo.use:
     description: Allows using the serverinfo command
-    default: true
+    default: true
+  serverinfo.admin:
+    description: Allows changing server settings
+    default: op