Bump actions/github to 2.2.0 to support GHES (#72)

* Bumping actions/github to 2.2.0

* Husky commit correct node modules

node_modules/istanbul-reports/lib/html/templates/foot.txt

@@ -0,0 +1,21 @@
+<div class='push'></div><!-- for sticky footer -->
+</div><!-- /wrapper -->
+<div class='footer quiet pad2 space-top1 center small'>
+  Code coverage
+  generated by <a href="https://istanbul.js.org/" target="_blank">istanbul</a> at {{datetime}}
+</div>
+</div>
+{{#if prettify}}
+<script src="{{prettify.js}}"></script>
+<script>
+window.onload = function () {
+        if (typeof prettyPrint === 'function') {
+            prettyPrint();
+        }
+};
+</script>
+{{/if}}
+<script src="{{sorter.js}}"></script>
+<script src="{{blockNavigation.js}}"></script>
+</body>
+</html>