Update README.md

README.md

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 Part of **BODHI (Bharat Ontology for Disease & Healthcare Informatics)** — open clinical knowledge graphs for grounding healthcare AI in verified medical facts.
 
-→ [Full writeup: motivation, design & use cases](https://www.eka.care/blog/bodhi-clinical-knowledge-graphs)
+→ [Full writeup: motivation, design & use cases](https://info.eka.care/services/bodhi-bharat-ontology-for-disease-healthcare-informatics)
 → [GitHub (all formats: Neo4j, CSV, PyG, RDF)](https://github.com/eka-care/BODHI)
 
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