v0.1.6

Changelog

• 8199408: Add advanced usage (@j178)
• 87757ef: Improve leetgo.yaml missing warning, simplify leetgo git push (@j178)
• 5706be4: Remove early-loading for contest questions (@j178)
• 7bc13af: Support LEETGO_WORKDIR (@j178)
• 71c635c: Run golangci-lint run --fix (@j178)
• 8a77f79: Add working dir to config output (@j178)
• 8472193: Add discord release announce (@j178)
• ea25245: Fix environment (@j178)