add send-message info

main.js

@@ -25,8 +25,6 @@ client.on('qr', qr => {
 // Listening to all incoming messages
 client.on('message_create', message => {
     console.log(message.body);
-    // console.log(message)
-    // sendMessage(message.from, 'Olá! Estou ocupado agora, mas assim que possível entrarei em contato.');
 });
 
 function sendMessage(number, message) {
@@ -34,6 +32,9 @@ function sendMessage(number, message) {
 }
 
 app.post('/send-message', (req, res) => {
+    /*
+    This function only accepts numbers formatted as: [CountryCode][Number]@c.us // Example: 39333555887@c.us
+    */
     const { number, message } = req.body;
     if (!number || !message) {
         return res.status(400).send('Number and message are required');