Add Chatwoot to documentation

See repo: https://github.com/chatwoot/chatwoot

documentation/src/components/ChatwootWidget.js

@@ -0,0 +1,14 @@
+(function (d, t) {
+  var BASE_URL = "https://app.chatwoot.com";
+  var g = d.createElement(t), s = d.getElementsByTagName(t)[0];
+  g.src = BASE_URL + "/packs/js/sdk.js";
+  g.defer = true;
+  g.async = true;
+  s.parentNode.insertBefore(g, s);
+  g.onload = function () {
+    window.chatwootSDK.run({
+      websiteToken: 'cFxvnLSjfE2UF4UUiPCA5NsF',
+      baseUrl: BASE_URL
+    })
+  }
+})(document, 'script');