fix: Update example config.xml code block formatting

Author: hactazia

content/docs/server/configuration.mdx

@@ -95,7 +95,7 @@ How many people can connect with the same Auth credentials.
 
 The default settings you may find in the config.xml:
 
-```xml title="Example Config.xml"
+```xml
 <?xml version="1.0" encoding="utf-8"?>
 <Configuration xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema">
   <PeerLimit>1024</PeerLimit>