Update README to include bibtex.

Add bibtex, DOI and author list needs to be updated.

README.md

@@ -41,5 +41,18 @@ The experiment by running the mmseg stack for 50 epochs using the above config l
 ### Inference and demo
 The github repo includes an inference script that allows to run the burn scar model for inference on HLS images. These input have to be geotiff format, including the channels described above (Blue, Green, Red, Narrow NIR, SWIR, SWIR 2) in reflectance units [0-1]. There is also a **demo** that leverages the same code **[here](https://huggingface.co/spaces/ibm-nasa-geospatial/Prithvi-100M-Burn-scars-demo)**.
 
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-
+### Citation
+## Citation
+
+If this model helped your research, please cite `Prithvi-100M-burn-scar` in your publications. Here is an example BibTeX entry:
+
+```
+@misc{Prithvi-100M-burn-scar,
+    author = {Roy, Sujit and Phillips, Christopher and Ramachandran, Rahul},
+    doi    = {https://huggingface.co/ibm-nasa-geospatial/Prithvi-100M-burn-scar},
+    month  = aug,
+    title  = {{Prithvi 100M burn scar}},
+    url    = {https://huggingface.co/ibm-nasa-geospatial/Prithvi-100M-burn-scar},
+    year   = {2023}
+}
+```