Update README.md

Add LoRA description and installation details.

README.md

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+### Introducing Filmgrain LoRA for Stable Diffusion 1.5
+**Overview**
+Meet our Low Rank Adapter (LoRA) for Stable Diffusion 1.5: your go-to for adding that nostalgic, film-like touch to digital images.
+
+**Who's It For?**
+If you love the "analog style" in photographs—grains, colors, and all—this one's for you.
+
+**Features**
+- Film Grain: Get that classic grainy texture.
+- Slight Discoloration: Add subtle, film-like color shifts to your images.
+
+**Recommended Settings:**
+Note: This LoRA works well for portrait photography.
+- Model/checkpoint to use this LoRA with: dreamshaper
+- Steps: 25
+- CFG scale: 7
+- Sampler: Tested with Eular a and DPM++ 2M Karras
+
+Experiment with different settings; you might get better results!
+
+**Local Installation**
+- Download and save the tensor file to your models\lora folder of your Stable Diffusion installation. If using Automatic1111 it would be here: \\a1111\\stable-diffusion-webui\\models\\Lora
+- When using Automatic1111 UI, click “show/hide networks” button.
+- Choose the LoRA, and it automatically adds the activation tag to your prompt.
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 license: artistic-2.0
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+pipeline_tag: text-to-image
+---