add message to warn about web3.js

Author: iurimatias

lib/index.js

@@ -138,6 +138,7 @@ class Embark {
         });
 
         engine.events.on('outputDone', function () {
+          engine.logger.warn(__("Note: The console uses ").green + (__("web3.js 1.0").underline + " ").cyan + " the reference docs for web3.js can be found at http://web3js.readthedocs.io/en/1.0/".green);
           engine.logger.info((__("Looking for documentation? You can find it at") + " ").cyan + "http://embark.status.im/docs/".green.underline + ".".cyan);
           engine.logger.info(__("Ready").underline);
           engine.events.emit("status", __("Ready").green);