Update Alamofire 3.0 Migration Guide.md
Update Alamofire 3.0 Migration Guide.md

Spelling fix
ThornTechPublic/Alamofire,iosheadhunter/Alamofire,Karumi/Alamofire-Result,alvincrisuy/Alamofire,revdotcom/Alamofire,revdotcom/Alamofire,richardPFisk/Alamofire,Vkt0r/Alamofire,sarunw/Alamofire,iosheadhunter/Alamofire,yimajo/Alamofire,Holmusk/Alamofire,DouKing/Alamofire,liuchungui/Alamofire,yimajo/Alamofire,easyui/Alamofire,ikesyo/Alamofire,kevin-zqw/Alamofire,antigp/Alamofire,Koalappp/Alamofire,tonyli508/AlamofireDomain,Swiftosis/Alamofire,agustindc-rga/Alamofire,cmpt275group9/Alamofire,sarunw/Alamofire,antigp/Alamofire,ThornTechPublic/Alamofire,gauravds/Alamofire,AnthonyMDev/Alamofire,agustindc-rga/Alamofire,Farteen/Alamofire,Karumi/Alamofire-Result,Lomotif/Alamofire,Alamofire/Alamofire,Noobish1/Alamofire,Koalappp/Alamofire,tokorom/Alamofire,Vkt0r/Alamofire,Baza207/Alamofire,tokorom/Alamofire,dgdosen/Alamofire,jschmid/Alamofire,cmpt275group9/Alamofire,Baza207/Alamofire,ikesyo/Alamofire,twobitlabs/Alamofire,twobitlabs/Alamofire,jschmid/Alamofire,Farteen/Alamofire,kevin-zqw/Alamofire,kiancheong/Alamofire,Holmusk/Alamofire,kiancheong/Alamofire,Swiftosis/Alamofire,mbhuta/Alamofire,AnthonyMDev/Alamofire,tonyli508/AlamofireDomain,Lomotif/Alamofire,mbhuta/Alamofire,Noobish1/Alamofire,Staance/Alamofire,meteochu/Alamofire,easyui/Alamofire,alvincrisuy/Alamofire,gauravds/Alamofire,Staance/Alamofire,DouKing/Alamofire,Alamofire/Alamofire,Holmusk/Alamofire,meteochu/Alamofire,liuchungui/Alamofire,richardPFisk/Alamofire,dgdosen/Alamofire