[Docs] Change response symbol to json in openai_compatible_server.md

Signed-off-by: windsonsea <[email protected]>

Author: windsonsea

docs/serving/openai_compatible_server.md

@@ -403,7 +403,7 @@ curl -v "http://127.0.0.1:8000/classify" \
 
 Response:
 
-```bash
+```json
 {
   "id": "classify-7c87cac407b749a6935d8c7ce2a8fba2",
   "object": "list",
@@ -453,7 +453,7 @@ curl -v "http://127.0.0.1:8000/classify" \
 
 Response:
 
-```bash
+```json
 {
   "id": "classify-9bf17f2847b046c7b2d5495f4b4f9682",
   "object": "list",
@@ -525,7 +525,7 @@ curl -X 'POST' \
 
 Response:
 
-```bash
+```json
 {
   "id": "score-request-id",
   "object": "list",
@@ -567,7 +567,7 @@ curl -X 'POST' \
 
 Response:
 
-```bash
+```json
 {
   "id": "score-request-id",
   "object": "list",
@@ -616,7 +616,7 @@ curl -X 'POST' \
 
 Response:
 
-```bash
+```json
 {
   "id": "score-request-id",
   "object": "list",
@@ -695,7 +695,7 @@ curl -X 'POST' \
 
 Response:
 
-```bash
+```json
 {
   "id": "rerank-fae51b2b664d4ed38f5969b612edff77",
   "model": "BAAI/bge-reranker-base",