As capturas de tela do Github redimensionam
![test image size]<img src="https://fullpath/assets/yourgif.gif" width="400" height="790">
CuteKittyCat
![test image size]<img src="https://fullpath/assets/yourgif.gif" width="400" height="790">
<a href="url"><img src="http://url.to/image.png" align="left" height="48" width="48" ></a>