Adding something to the bottom of every post in WordPress
This is useful if you want to add something to the bottom of every post. In my case, I wanted to add a newsletter subscription option at the end of every post.
Install header, footer and post injection plugin
Install this plugin – https://wordpress.org/plugins/header-footer/
Configuring the plugin
You will find the plugin in Setting-> Header and footer.
Under “post” tab
Under the “posts” tab you will find the section – “After the post content”. Add whatever you want and you will see this show up below every post. In my case, I added a shortcode that shows the email newsletter plugin from Mailchimp