Release 0.1.32

What's Changed

• feat: add recommend questions by @xujingli in #74
• langchain suppport by @BroKun in #78
• fix: change some styles of bot by @xujingli in #84
• chore: release by @difizor in #83
• fix: delete docs build scripts by @xujingli in #85

Full Changelog: 0.1.31...0.1.32