Update README.md

README.md

@@ -20,7 +20,8 @@ For other workflow template, it requires custom nodes and file requirements, it'
 2. "Recommended SDXL Resolution Calculator" (install it first just like number 1, open command prompt from this folder \ComfyUI\custom_nodes\ then use this command "git clone https://github.com/marhensa/sdxl-recommended-res-calc.git")
 3. LoRA selector, (needs a SDXL LoRA file, for example, download SDXL LoRA example from [StabilityAI](https://huggingface.co/stabilityai/stable-diffusion-xl-base-1.0/resolve/main/sd_xl_offset_example-lora_1.0.safetensors), put into ComfyUI\models\loras\)
 4. VAE selector, (needs a VAE file, download default VAE from [StabilityAI](https://huggingface.co/stabilityai/sdxl-vae/resolve/main/sdxl_vae.safetensors), put into \ComfyUI\models\vae\), just in case in the future there's better VAE or mandatory VAE for some models, use this selector
-5. Restart ComfyUI
+5. Upscale model, (needs to be downloaded into \ComfyUI\models\upscale_models\ Recommended one is 4x-UltraSharp, download [from here](https://mega.nz/folder/qZRBmaIY#nIG8KyWFcGNTuMX_XNbJ_g). All the list of Upscale model is [here](https://upscale.wiki/wiki/Model_Database).)
+6. Restart ComfyUI
 
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