Start a test-vote example

examples/test-vote.js

+const steemauth = require('steemauth');
+const steem = require('..');
+
+const username = process.env.STEEM_USERNAME;
+const password = process.env.STEEM_PASSWORD;
+const wif = steemauth.toWif(username, password, 'posting');
+
+steem
+  .broadcast
+  .upvote(
+    wif,
+    username,
+    'yamadapc',
+    'test-post-bop-1-2-3-4-5-6',
+    null,
+    function(err, result) {
+      console.log(err, result);
+    }
+  );