How to add youtube subscribe button on all blog post

SUBSCRIBE BUTTON on blog post

Check out the video or follow below procedure

1. Copy your channel ID from Youtube 
2. goto https://developers.google.com/youtube/youtube_subscribe_button
3. Paste youtube channel Id on Channel Name or ID:
4. Choose the setting as required or leave on default 
5. copy the code 
   
6. goto your blog click template 
   
7. click edit HTML
   
8. press CTRL + F and search for <data:post.body/> 
9. paste your youtube code above and below <data:post.body/> to show subscribe button on top and bottom of every post. as shown in below pic
   
10. save template
    
11. test your code. click on View blog on top of page.