Update README.md for RL example colab

README.md

@@ -173,6 +173,10 @@ image_pil = PIL.Image.fromarray(image_processed[0])
 image_pil.save("test.png")
 ```
 
+#### **Examples for other modalities:**
+
+[Diffuser](https://diffusion-planning.github.io/) for planning in reinforcement learning: [![Open In Colab](https://colab.research.google.com/assets/colab-badge.svg)](https://colab.research.google.com/drive/1TmBmlYeKUZSkUZoJqfBmaicVTKx6nN1R?usp=sharing)
+
 ### 2. `diffusers` as a collection of popular Diffusion systems (GLIDE, Dalle, ...)
 
 For more examples see [pipelines](https://github.com/huggingface/diffusers/tree/main/src/diffusers/pipelines).