abdurrahimyilmaz/DermatoLlama-1.0 · Add pipeline tag, correct license, add library name and usage example

This PR adds the pipeline_tag, corrects the license to match the specified license in the YAML metadata, adds the library_name, and adds a usage example. The pipeline_tag is set to image-to-text based on the model's functionality. The license is corrected for consistency. The library_name is set to transformers because the provided usage examples demonstrate compatibility with the Transformers library. A usage example is added to show how to use the model with the transformers library.