Merge pull request kohya-ss#2298 from kohya-ss/sd3

Merge development changes into main

Merge pull request kohya-ss#2264 from kohya-ss/release/v0.10.1

Release 0.10.1

Merge pull request kohya-ss#2254 from kohya-ss/dev

Merge the changes from the sd3 branch into main

doc: update README for latest

Merge pull request kohya-ss#1879 from kohya-ss/dev

merge dev to main

add about dev and sd3 branch to README

change huber_schedule from `exponential` to `snr`

Merge pull request kohya-ss#1212 from kohya-ss/dev

Version 0.8.6

Merge pull request kohya-ss#1187 from kohya-ss/fix-timeemb

fix sdxl timestep embedding

Merge pull request kohya-ss#1136 from kohya-ss/dev

v0.8.4