A bug in Blogger theme that contain native "Read More" feature and How I avoid it

 The bug is that if you insert a link, it doesn't display on the main home page (just plain content). So, I chose the theme like current one (without native "Read More" feature). But you can use "Insert Jump Break" in the menu bar of text compose windows. 

I insert a jump break and you will see this content only if you click the "Read More". Perhaps I will record a video for this too in the future.