Merge pull request #5 from ards-project/update-hf-discover

update hf discover documentation + mcp link

Author: rvguha

docs/ref_implementations.md

@@ -2,13 +2,16 @@
 
 ## Hugging Face Discover Tool
 
-The Hugging Face [Discover Tool](https://github.com/huggingface/hf-discover) provides search access to thousands of Skills, ML Applications, and MCP Servers — on Hugging Face and across other ARD discovery services.
+The Hugging Face [Discover Tool](https://github.com/huggingface/hf-discover) provides search access to thousands of Skills, ML Applications, and MCP Servers — on Hugging Face - or any other ARD compliant service.
 
 ### Hugging Face CLI (`hf`)
 
-`discover` is built into the [Hugging Face CLI](https://github.com/huggingface/huggingface_hub) (`hf`). Install it standalone with `uv tool install hf-discover`, or use the `hf` CLI directly:
+`discover` is built into the [Hugging Face CLI](https://github.com/huggingface/huggingface_hub) (`hf`). To get started:
 
 ```bash
+# Install the Hugging Face CLI tool:
+uv tool install huggingface_hub
+
 # Search for resources to train a model
 hf discover search "Fine tune a language model"
 
@@ -17,13 +20,17 @@ hf discover search "Generate an image" --json --kind mcp
 
 # Search other registries
 hf discover search "Purchase aeroplane tickets" --registry-url <catalog-url>
+
+# Navigate a federated catalog from a website
+hf discover navigate <web-url> "Research biomedical datasets"
 ```
 
-Navigate mode locates AI Catalogs from URLs and traverses federated registries.
+### REST and MCP API Access
 
-### REST API
+Query the Hugging Face catalog service directly via:
 
-Reach the same data over HTTP — the catalog at `https://huggingface.co/.well-known/ai-catalog.json`, or call search directly at `https://evalstate-hf-discover.hf.space/search`.
+  - The REST API at: `https://evalstate-hf-discover.hf.space/search`
+  - MCP at: `https://evalstate-hf-discover.hf.space/mcp`
 
 ## GitHub Agent Finder