chore: add attribution

AUTHORS

@@ -11,3 +11,4 @@ contributors:
 # to add yourself.
 - jalf <git@jalf.dk>
 - NTT corp.
+- Juanjo Díaz (@juanjoDiaz)

README.md

@@ -224,6 +224,7 @@ that list and you think you should be, feel free to send a PR to fix that.
     * Original Logo : Michael Sersen
     * tight encoding : Michael Tinglof (Mercuri.ca)
     * RealVNC RSA AES authentication : USTC Vlab Team
+    * Clipboard support: Juanjo Díaz
 
 * Included libraries:
     * base64 : Martijn Pieters (Digital Creations 2), Samuel Sieb (sieb.net)

core/clipboard.js

@@ -1,3 +1,9 @@
+/*
+ * noVNC: HTML5 VNC client
+ * Copyright (c) 2021 Juanjo Díaz
+ * Licensed under MPL 2.0 or any later version (see LICENSE.txt)
+ */
+
 export default class Clipboard {
     constructor(target) {
         this._target = target;