docs: Added "Installation" section.
docs: Added "Installation" section.

ifduyue/bottle,StdioA/bottle,hkmshb/bottle,mefyl/bottle,samstav/bottle,CentricWebEstate/bottle,SmithSamuelM/bottle,kevintaw/bottle,hayate/bottle,catroot/bottle,taisa007/bottle-ja,Kjuly/bottle,ListFranz/bottle,kevinmel2000/bottle,myzhan/bottle,taisa007/bottle-ja,AWFU/bottle,defnull/bottle,fkazimierczak/bottle,prologic/bottle,xsank/bottle,ericfrederich/bottle,gaotongfei/bottle,mefyl/bottle,bottlepy/bottle,hayate/bottle,oz123/bottle,enzzc/bottle,khirayama/bottle,catroot/bottle,SmithSamuelM/bottle,adampresley/bottle,khirayama/bottle,SamuelMarks/bottle,fkazimierczak/bottle,StdioA/bottle,adampresley/bottle,defnull/bottle,wangjun/bottle,mrdon/bottle,oz123/bottle,SamuelMarks/bottle,myzhan/bottle,Inndy/bottle,ericfrederich/bottle,CentricWebEstate/bottle,enzzc/bottle,wangjun/bottle,kevinmel2000/bottle,samstav/bottle,gaotongfei/bottle,Kjuly/bottle,prologic/bottle,AWFU/bottle,Inndy/bottle,kevintaw/bottle,hkmshb/bottle,ListFranz/bottle,bottlepy/bottle,mrdon/bottle,ifduyue/bottle