ecb2b73Update: requiremetafor fixable rules in RuleTester (refs #13349) (#13489) (Milos Djermanovic)6fb4eddDocs: fix broken links in developer guide (#13518) (Sam Chen)318fe10Fix: Do not outputundefinedas line and column when it's unavailable (#13519) (haya14busa)493b5b4Sponsors: Sync README with website (ESLint Jenkins)f100143Sponsors: Sync README with website (ESLint Jenkins)16b10feFix: Update the chatroom link to go directly to help channel (#13536) (Nicholas C. Zakas)f937eb9Sponsors: Sync README with website (ESLint Jenkins)e71e298Update: Change no-duplicate-case to comparing tokens (fixes #13485) (#13494) (Yosuke Ota)6c4aea4Docs: add ECMAScript 2020 to README (#13510) (Milos Djermanovic)