1. Plugin Installation.
Download the Wordpress plugin by clicking this link.
Goto Wordpress Dashboard then Click on Plugins. Next, click on "Add new" button at top.
Then on "Add Plugins" page, click on "Upload Plugin" button.
Now, click on "Choose File" button and upload the Downloaded .zip file.
Now, click on "Install Now" button and then click on "Activate Plugin".
2. Adding Shortcode.
Copy [wptba] shortcode and paste it on a page/post.
[wptba]
Click on save/update.
Open the same page/post in incognito/private mode.
Goto login Page and click on "Create Account"
Add name, email and username
Click on Register
Now, follow the instructions provided via email
Goto login Page and click on "Forgot Password"
Enter the email address for the account
click on "Reset Password"