v5.5

Fix some bugs.

v5.4

hex: Upload mini-3216.bin

Signed-off-by: Muchun Song <songmuchun@bytedance.com>

v5.3

Fix some bug.

v5.2

Fix some bug and add some features.

v5.1

Fix some bug.

v5.0

This is the first release of Mini3216.

Why is there no v4.0 or lower?
Because the previous code was terrible, I abandoned it.