Added helpful comment

app/add.js

@@ -22,6 +22,8 @@ const dns_key = `hmac-sha512:wgapi-${env.LOCAL_SERVER}:${env.DNS_KEY}`
 let config_queue = []
 
 module.exports = async (req, res) => {
+	
+	// Parse, sanitize, and validate hostname
 	const new_hostname = req.query['name'].trim().toLowerCase()
 	if (!new_hostname) {
 		console.log(`New peer request from ${req.requester} didn't provide a hostname`)