HTML Problems About Tags on Atom

Hi guys ; i put the image link in atom as
::img src=“https://dogshome.com/summer-cat-adoption/‪‪” alt=“no connection” width="" height="">
it appears like this

Untill now i couldnt put an image on my website.it doesnt appear. instead ; even if i delete img tag my img box appers on website as “no connection”…

Later i delete everything but it is still on website.