Introduce overview of domain-specific biomedical models

Added an overview of domain-specific biomedical foundation models, highlighting their training on various data modalities including clinical text, imaging, genomics, proteins, and EHRs.

Author: blengerich

content/03.domain_specific.md

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+## The Current State of Domain-Specific Biomedical Foundation Models
+
+Overview of foundation models trained directly on biomedical data across major modalities such as clinical text, imaging, genomics, proteins, and EHRs.