add description for media pipeline MEDIA_ALLOW_REDIRECTS and MEDIA_HTTPSTATUS_LIST settings
add description for media pipeline MEDIA_ALLOW_REDIRECTS and MEDIA_HTTPSTATUS_LIST settings

Ryezhang/scrapy,kmike/scrapy,taito/scrapy,starrify/scrapy,dangra/scrapy,scrapy/scrapy,shaform/scrapy,wujuguang/scrapy,ssteo/scrapy,ArturGaspar/scrapy,ssteo/scrapy,rolando/scrapy,Parlin-Galanodel/scrapy,rolando-contrib/scrapy,starrify/scrapy,eLRuLL/scrapy,umrashrf/scrapy,dangra/scrapy,shaform/scrapy,pablohoffman/scrapy,taito/scrapy,elacuesta/scrapy,kmike/scrapy,pawelmhm/scrapy,pawelmhm/scrapy,Ryezhang/scrapy,darkrho/scrapy-scrapy,pablohoffman/scrapy,umrashrf/scrapy,Parlin-Galanodel/scrapy,dangra/scrapy,finfish/scrapy,kmike/scrapy,elacuesta/scrapy,ArturGaspar/scrapy,darkrho/scrapy-scrapy,ArturGaspar/scrapy,eLRuLL/scrapy,pawelmhm/scrapy,rolando/scrapy,Ryezhang/scrapy,eLRuLL/scrapy,scrapy/scrapy,starrify/scrapy,rolando-contrib/scrapy,taito/scrapy,shaform/scrapy,wujuguang/scrapy,ssteo/scrapy,elacuesta/scrapy,finfish/scrapy,scrapy/scrapy,pablohoffman/scrapy,Parlin-Galanodel/scrapy,rolando/scrapy,umrashrf/scrapy,finfish/scrapy,wujuguang/scrapy,rolando-contrib/scrapy,darkrho/scrapy-scrapy