[Doc] Move examples and further reorganize user guide (vllm-project#18666)

Signed-off-by: DarkLight1337 <[email protected]>
Signed-off-by: amit <[email protected]>

Author: DarkLight1337

docs/.nav.yml

@@ -5,11 +5,9 @@ nav:
       - getting_started/quickstart.md
       - getting_started/installation
     - Examples:
-      - Offline Inference: getting_started/examples/offline_inference
-      - Online Serving: getting_started/examples/online_serving
-      - Others:
-        - LMCache: getting_started/examples/lmcache
-        - getting_started/examples/other/*
+      - Offline Inference: examples/offline_inference
+      - Online Serving: examples/online_serving
+      - Others: examples/others
     - Quick Links:
       - User Guide: usage/README.md
       - Developer Guide: contributing/README.md
@@ -19,6 +17,7 @@ nav:
       - Releases: https://github.com/vllm-project/vllm/releases
   - User Guide:
     - Summary: usage/README.md
+    - usage/v1_guide.md
     - General:
       - usage/*
     - Inference and Serving: