Update README
Update README

Add missing dependecies and build steps needed by submodules.

lcheylus/haka,nabilbendafi/haka,LubyRuffy/haka,nabilbendafi/haka,lcheylus/haka,lcheylus/haka,Wingless-Archangel/haka,haka-security/haka,Wingless-Archangel/haka,LubyRuffy/haka,haka-security/haka,haka-security/haka,nabilbendafi/haka