transformers

5aaf5aac - [contributing doc] explain/link to good first issue (#11346)

[contributing doc] explain/link to good first issue (#11346) * explain/link to good first issue * Apply suggestions from code review Co-authored-by: Sylvain Gugger <35901082+sgugger@users.noreply.github.com> Co-authored-by: Sylvain Gugger <35901082+sgugger@users.noreply.github.com>