Raster image saving to html

[Sudhip007]

Hi Team,

I have run the raster image with localtileserver and at the end I saved the map into html format. It displayed my raster image, but after closing jupyter notebook and I opened my saved html file then it not displaying my raster image. Please, help me out in this issue.

I used folium for this.

Thanks..

[banesullivan]

See #174