added modernizr 3.8

also updated with bet a flag to test github actions

Author: roblarsen

dist/css/main.css

@@ -1,4 +1,4 @@
-/*! HTML5 Boilerplate v7.3.0 | MIT License | https://html5boilerplate.com/ */
+/*! HTML5 Boilerplate v7.3.0-beta | MIT License | https://html5boilerplate.com/ */
 
 /* main.css 2.0.0 | MIT License | https://github.com/h5bp/main.css#readme */
 /*

dist/index.html

@@ -24,7 +24,7 @@
 
   <!-- Add your site or application content here -->
   <p>Hello world! This is HTML5 Boilerplate.</p>
-  <script src="js/vendor/modernizr-3.7.1.min.js"></script>
+  <script src="js/vendor/modernizr-3.8.0.min.js"></script>
   <script src="https://code.jquery.com/jquery-3.4.1.min.js" integrity="sha256-CSXorXvZcTkaix6Yvo6HppcZGetbYMGWSFlBw8HfCJo=" crossorigin="anonymous"></script>
   <script>window.jQuery || document.write('<script src="js/vendor/jquery-3.4.1.min.js"><\/script>')</script>
   <script src="js/plugins.js"></script>