Update more distribution docs to be simpler and partially codegen'ed

llama_stack/templates/hf-serverless/build.yaml

@@ -1,9 +1,19 @@
+version: '2'
 name: hf-serverless
 distribution_spec:
-  description: "Like local, but use Hugging Face Inference API (serverless) for running LLM inference.\nSee https://hf.co/docs/api-inference."
+  description: Use (an external) Hugging Face Inference Endpoint for running LLM inference
+  docker_image: null
   providers:
-    inference: remote::hf::serverless
-    memory: inline::faiss
-    safety: inline::llama-guard
-    agents: inline::meta-reference
-    telemetry: inline::meta-reference
+    inference:
+    - remote::hf::serverless
+    memory:
+    - inline::faiss
+    - remote::chromadb
+    - remote::pgvector
+    safety:
+    - inline::llama-guard
+    agents:
+    - inline::meta-reference
+    telemetry:
+    - inline::meta-reference
+image_type: conda