Reverse dependencies for dom_render

Latest version of the following gems require dom_render

Gem	Version	Date	Downloads
gtk2svg +56.9 Thousand Downloads	`0.3.20` August 25, 2020	August 25, 2020	56.9 Thousand
r2dsvg +25.9 Thousand Downloads	`0.5.2` September 19, 2020	September 19, 2020	25.9 Thousand
humble_rpi-plugin-mtp +23.4 Thousand Downloads	`0.3.3` November 26, 2015	November 26, 2015	23.4 Thousand