better way to use favicon in provider_map
better way to use favicon in provider_map

mehanig/scrapi,ostwald/scrapi,fabianvf/scrapi,erinspace/scrapi,erinspace/scrapi,alexgarciac/scrapi,mehanig/scrapi,jeffreyliu3230/scrapi,fabianvf/scrapi,felliott/scrapi,CenterForOpenScience/scrapi,felliott/scrapi,CenterForOpenScience/scrapi