Update README.md

Add link to AI-Toolkit fork

README.md

@@ -17,4 +17,15 @@ The necessary workflow is included in the node or can be downloaded [here](https
 
 ### ComfyUI Changes
 
-Check out or download the [dev-ideogram4-inpaint branch](https://github.com/BitPoet/ComfyUI/tree/dev-ideogram4-inpaint) of my Comfy fork.
+Check out or download the [dev-ideogram4-inpaint branch](https://github.com/BitPoet/ComfyUI/tree/dev-ideogram4-inpaint) of my Comfy fork.
+
+## Training
+
+To train with reference images, you currently need to use a slightly adapted fork of AI-Toolkit.
+You can find my bitpoet-ideogram4-refimages branch [here on GitHub](https://github.com/BitPoet/ai-toolkit/tree/bitpoet-ideogram4-refimages)
+
+It also includes a fix for the UTF-8 / ANSII error lately popping up on Windows that has jobs fail at startup.
+
+Note that this AI-Toolkit adaption is targeted at Ideogram 4 with reference images and JSON prompts in the dataset editor, so you may not be able to use it to train regular LoRAs.
+
+I will add a small example dataset at some point.