updates preview images

replaces all preview portraits with less scuffed ones

adds more consistent preview images generated with ControlNet

adds loss values to most LoRAs

uses simplified Chinese names since they're easier to find

fixes typo in Sora README

uses official TW series name

adds Kokona to index README

adds zh-TW character names

updates README for several characters

adds links to Sora/Reisa training datasets

updates sora/shizuko README training notes

adds retrained Sora LoRA

adds shizuko LoRA

initial commit