[Docs] Improve API docs (+small tweaks) (#22459)

Signed-off-by: Harry Mellor <19981378+hmellor@users.noreply.github.com>

docs/.nav.yml

@@ -58,10 +58,9 @@ nav:
     - CI: contributing/ci
     - Design Documents: design
   - API Reference:
-    - Summary: api/README.md
+    - Summary: api/summary.md
     - Contents:
-      - glob: api/vllm/*
-        preserve_directory_names: true
+      - api/vllm/*
   - CLI Reference:
     - Summary: cli/README.md
   - Community:

docs/features/quantization/inc.md

----
-title: FP8 INC
----
-[](){ #inc }
+# FP8 INC
 
 vLLM supports FP8 (8-bit floating point) weight and activation quantization using Intel® Neural Compressor (INC) on Intel® Gaudi® 2 and Intel® Gaudi® 3 AI accelerators.
 Currently, quantization is validated only in Llama models.

docs/mkdocs/hooks/generate_examples.py

@@ -105,7 +105,7 @@ class Example:
         return fix_case(self.path.stem.replace("_", " ").title())
 
     def generate(self) -> str:
-        content = f"---\ntitle: {self.title}\n---\n\n"
+        content = f"# {self.title}\n\n"
         content += f"Source <gh-file:{self.path.relative_to(ROOT_DIR)}>.\n\n"
 
         # Use long code fence to avoid issues with

mkdocs.yaml

@@ -40,6 +40,7 @@ theme:
     - navigation.sections
     - navigation.prune
     - navigation.top
+    - navigation.indexes
     - search.highlight
     - search.share
     - toc.follow
@@ -51,11 +52,6 @@ hooks:
   - docs/mkdocs/hooks/generate_argparse.py
   - docs/mkdocs/hooks/url_schemes.py
 
-# Required to stop api-autonav from raising an error
-# https://github.com/tlambert03/mkdocs-api-autonav/issues/16
-nav:
-  - api
-
 plugins:
   - meta
   - search