[www] Add dedicated „How to File an Issue“ page (fix #3923)#3945

KyleAMathews merged 1 commit intogatsbyjs:mastergatsbyjs/gatsby:masterfrom

fk:topics/www-add-how-to-file-an-issue-pagefk/gatsby:topics/www-add-how-to-file-an-issue-pageCopy head branch name to clipboard