Release 4.1.1

What's Changed

• update rt-thread nano version to v4.1.1 by @kurisaW in #15
• fix heap mem dependence by @kurisaW in #17

New Contributors

• @kurisaW made their first contribution in #15

Full Changelog: v3.1.5...v4.1.1

Release 3.1.5

Merge pull request #11 from yangjie11/nano315

【删除】文件夹快捷方式