[Docs] Add a note about the plan to switch to Apache License
[Docs] Add a note about the plan to switch to Apache License

abourget/hugo,gohugoio/hugo,digitalcraftsman/hugo,derekperkins/hugo,mdhender/hugo,kujohn/hugo,mdhender/hugo,coderzh/hugo,abourget/hugo,sprig/hugo,ifraixedes/hugo,vbatoufflet/hugo,ryanclarke/hugo,mayah/hugo,kujohn/hugo,melo/hugo,mitchchn/hugo,ifraixedes/hugo,mitchchn/hugo,mdhender/hugo,bramp/hugo,jygastaud/hugo,MarkDBlackwell/hugo,tjyang/hugo,gohugoio/hugo,fedelibre/hugo,coderzh/hugo,mdhender/hugo,sprig/hugo,tischda/hugo,melo/hugo,tischda/hugo,anthonyfok/hugo,tubo028/hugo,bramp/hugo,tjyang/hugo,soundrussian/hugo,fhergomez/hugo,Zenithar/hugo,jygastaud/hugo,fedelibre/hugo,mayah/hugo,tatsushid/hugo,anthonyfok/hugo,anthonyfok/hugo,derekperkins/hugo,Zenithar/hugo,ffrizzo/hugo,gohugoio/hugo,ryanclarke/hugo,badoet/hugo,MarkDBlackwell/hugo,bogem/hugo,bogem/hugo,tubo028/hugo,fedelibre/hugo,halostatue/hugo,tatsushid/hugo,fedelibre/hugo,soundrussian/hugo,halostatue/hugo,ffrizzo/hugo,badoet/hugo,digitalcraftsman/hugo,fhergomez/hugo,vbatoufflet/hugo