fix: emit peer discovery for dht discovery

Author: vasco-santos

src/index.js

@@ -407,7 +407,12 @@ class Node extends EventEmitter {
         // have to set started here because DHT requires libp2p is already started
         this._isStarted = true
         if (this._dht) {
-          this._dht.start(cb)
+          this._dht.start(() => {
+            this._dht.on('peer', (peerInfo) => {
+              this.emit('peer:discovery', peerInfo)
+            })
+            cb()
+          })
         } else {
           cb()
         }