edited photos in lightroom are not showing the editied icon in thumbnails at the bottom of page, how do i restore?

If you are referring to the thumbnails appearing in the filmstrip across the bottom of the LR window (not the grid of thumbnails in Library), go to Preferences > Interface, and in the Filmstrip section, make sure Show Badges is checked:

If they're still not showing, you may have set the filmstrip too small -- see here to make it bigger: https://laurashoe.com/2013/03/25/lightroom-filmstrip-quick-tips/