v0.2.0

What's Changed

• docs: 更新 readme by @caiwen666 in #11
• feat(xgxt): 将空宿舍信息解析为 None by @caiwen666 in #16
• feat!(hdjw): 适配教务系统新的成绩排名 by @caiwen666 in #15
• fix!(hdjw): 部分课程成绩可能不存在绩点字段 by @caiwen666 in #17

Full Changelog: v0.1.1...v0.2.0