Have ReadTheDocs builds fail on warning
Have ReadTheDocs builds fail on warning

pawelmhm/scrapy,pablohoffman/scrapy,scrapy/scrapy,dangra/scrapy,pawelmhm/scrapy,starrify/scrapy,scrapy/scrapy,elacuesta/scrapy,pablohoffman/scrapy,starrify/scrapy,pablohoffman/scrapy,elacuesta/scrapy,dangra/scrapy,pawelmhm/scrapy,starrify/scrapy,scrapy/scrapy,dangra/scrapy,elacuesta/scrapy