v2fix update

• 改善了v2的一些问题

• fix some issue on v2

v2 update

• 以新方式训练，有更好的细节，解决了v1中一些奇怪的现象，但是又添加了更多奇怪的问题

• Trained with a new method, it has better details and fixes some of the weird issues from v1, but it also introduces new and even stranger problems.

umou (umouawa)

This model is not trained very well, and it requires upscaling to achieve the best results.

这个训练的不是很好（我是fw），需要放大才能实现最好的效果