[Doc] Sync and fix. (#2110)

Signed-off-by: Alicia <115451386+congw729@users.noreply.github.com>

docs/user_guide/examples/online_serving/text_to_video.md

@@ -46,6 +46,7 @@ The main endpoints are:
 ## Storage
 
 Generated video files are stored on local disk by the async video API.
+Local file storage behavior can be controlled via the following environment variables:
 
 - `VLLM_OMNI_STORAGE_PATH`: directory used for generated files (default: `/tmp/storage`)
 - `VLLM_OMNI_STORAGE_MAX_CONCURRENCY`: max concurrent save/delete operations (default: `4`)
@@ -147,7 +148,7 @@ curl -X POST http://localhost:8091/v1/videos \
 
 ## Create Response Format
 
-`POST /v1/videos` returns a job record.
+`POST /v1/videos` returns a job record, not inline base64 video data.
 
 ```json
 {
@@ -204,6 +205,10 @@ done
 
 ## Example materials
 
+??? abstract "run_curl_hunyuan_video_15.sh"
+    ``````sh
+    --8<-- "examples/online_serving/text_to_video/run_curl_hunyuan_video_15.sh"
+    ``````
 ??? abstract "run_curl_text_to_video.sh"
     ``````sh
     --8<-- "examples/online_serving/text_to_video/run_curl_text_to_video.sh"
@@ -212,3 +217,7 @@ done
     ``````sh
     --8<-- "examples/online_serving/text_to_video/run_server.sh"
     ``````
+??? abstract "run_server_hunyuan_video_15.sh"
+    ``````sh
+    --8<-- "examples/online_serving/text_to_video/run_server_hunyuan_video_15.sh"
+    ``````