Web urls work, local path images work as background images. But, local path images WONT work using img tag.
<div class="Gallery">
<div class="ItemOne">
<img src="images/witcher.jpg" alt="ImageOne"></img>
</div>
<div class="ItemTwo">2</div>
<div class="ItemThree">3</div>
<div class="ItemFour">4</div>
Import the image first
import ImageOne from 'images/witcher.jpg'
and use it this way
<img src={ImageOne} alt="ImageOne"></img>