I found a new way to add images i product description
1. first upload all images in media directory if u want to use a folder u can also do this. suppose u make a folder in media folder as it is named is fxf
2. use this
<img src="../../media/fxf/your image name" alt="" />
to defined that images.
3. u must follow the other images tool as u have to defined it’s weight height align or other what u want to use in html imh tag.