add docs JS to activate popover demos; fixes #13937

docs/assets/js/_src/application.js

@@ -80,13 +80,18 @@
       selector: '[data-toggle="tooltip"]',
       container: 'body'
     })
+    $('.popover-demo').popover({
+      selector: '[data-toggle="popover"]',
+      container: 'body'
+    })
 
     // Demos within modals
     $('.tooltip-test').tooltip()
     $('.popover-test').popover()
 
-    // Default popover demo
+    // Default & dismissible popover demos
     $('.bs-docs-popover').popover()
+    $('.bs-docs-popover-dismiss').popover({trigger: 'focus'})
 
     // Button state demo
     $('#loading-example-btn').click(function () {