Add dev-requirements.txt
Add dev-requirements.txt

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