Update README.md

README.md

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 # Sky Scribe 🛰️✍️
 
+
+This model is a fine-tuning of Microsoft's [git](https://huggingface.co/microsoft/git-base), used to caption satellite images annotated by NASA Earth Observatory.
+
+As a result, when prompted with satellite images that are from or resemble the images shared by NASA Earth, will return a short description of that phenomena,
+including guesses to the location, date, and instrument used to capture that image. These are often hallucinations, leading to an important next step in this model's development, 
+where I can replace those guesses with additional metadata to serve as an input. 
+
+By consequence of this model being a fine-tuned version of a larger model, there is much behavior I cannot be sure is appropriate,
+especially for images that are not satellite images.
+Please use with caution.
+