Version 0.1.6 Release

Celebration For Chinese New Year 🎉🎉🎉

What's Changed

• Optimize the documentation. by @ZhuochengZhang98 in #12 and @ZhuochengZhang98 in #13
• optimize the requirements by @ZhuochengZhang98 in #14
• Add auto docstring for Register by @ZhuochengZhang98 in #15
• Add run_retriever entrypoint and add some new retrieval metrics. by @ZhuochengZhang98 in #16

Full Changelog: 0.1.5...0.1.6