Update links reference under the "Source code and downloads" section#4465

chinyeungli merged 1 commit intodevelopaboutcode-org/scancode-toolkit:developfrom

update_link_refs_from_nexb_to_aboutcode.org_in_READMEaboutcode-org/scancode-toolkit:update_link_refs_from_nexb_to_aboutcode.org_in_READMECopy head branch name to clipboard