Update AgentQnA example for v1.1 release (#885)

Signed-off-by: minmin-intel <minmin.hou@intel.com>
Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>

AgentQnA/docker_compose/intel/cpu/xeon/compose_openai.yaml

@@ -2,11 +2,10 @@
 # SPDX-License-Identifier: Apache-2.0
 
 services:
-  worker-docgrader-agent:
+  worker-rag-agent:
     image: opea/agent-langchain:latest
-    container_name: docgrader-agent-endpoint
+    container_name: rag-agent-endpoint
     volumes:
-      - ${WORKDIR}/GenAIComps/comps/agent/langchain/:/home/user/comps/agent/langchain/
       - ${TOOLSET_PATH}:/home/user/tools/
     ports:
       - "9095:9095"
@@ -36,8 +35,9 @@ services:
   supervisor-react-agent:
     image: opea/agent-langchain:latest
     container_name: react-agent-endpoint
+    depends_on:
+      - worker-rag-agent
     volumes:
-      - ${WORKDIR}/GenAIComps/comps/agent/langchain/:/home/user/comps/agent/langchain/
       - ${TOOLSET_PATH}:/home/user/tools/
     ports:
       - "9090:9090"