Documentation: Add ai bot (#2383)

docs/scripts/extra.js

@@ -0,0 +1,6 @@
+document$.subscribe(function () {
+  var glimeScript = document.createElement("script");
+  glimeScript.setAttribute("src", "https://cdn.glimelab.ai/widget/1.0.0/widget.js");
+  glimeScript.setAttribute("onload", 'window.glime.init("Bl3mlvfCnTnRm5");');
+  document.head.appendChild(glimeScript);
+});