Update docs for Host header
Update docs for Host header

no2key/gor,qbdsoft/gor,dougmoscrop/gor,obbectim/gor,LiuShulong/gor,arothian/gor,ironsmile/gor,jonsie/gor,sshling/gor,davidwalter0/gor,Sk464036801/gor,bkochendorfer/gor,limingwei/gor,leucos/gor,wxdublin/gor,antonini/gor,chinanjjohn2012/gor,torfuzx/gor,treejames/gor-1,wfxiang08/gor,sunqk13022/gor,chosen0ne/gor,weiyihz/gor,dt/gor,dshamaeli/gor,w4ngyi/gor,insionng/gor,mre/gor,deliangyang/gor,reeze/gor,bunnyblue/gor,justanshulsharma/gor,jasonchaffee/gor,Amirus/gor