Added clojure syntax highlighting in Readme
Added clojure syntax highlighting in Readme

I've added some missing clojure syntax highlighting in the the readme file.
instilled/boot,bbatsov/boot,ragnard/boot,crisptrutski/boot,ragnard/boot,boot-clj/boot,crisptrutski/boot,RadicalZephyr/boot,ragnard/boot,kennyjwilli/boot,kennyjwilli/boot,crisptrutski/boot,instilled/boot,RadicalZephyr/boot