Add HTML validation utility

bin/util/validate.js

@@ -0,0 +1,20 @@
+const axios = require('axios')
+const fs=require('fs')
+
+module.exports.validateHtml = (fileName) => {
+
+  const file = fs.readFileSync(fileName)
+
+  axios({
+    method: 'post',
+    url: 'https://validator.w3.org/nu/?out=json',
+    data: file,
+    headers: {
+      'Content-Type': 'text/html'
+    },
+    maxContentLength: Infinity,
+    maxBodyLength: Infinity
+  }).then(function (response) {
+    console.log(response.data.messages.filter(m => m.type !== 'info'));
+  })
+}