MultimodalQnA - fix README for Multimodal

Author: Chingis Yundunov

MultimodalQnA/docker_compose/intel/cpu/xeon/README.md

@@ -124,7 +124,7 @@ docker build --no-cache -t opea/embedding-multimodal:latest --build-arg https_pr
 ### 2. Build retriever-multimodal-redis Image
 
 ```bash
-docker build --no-cache -t opea/retriever-multimodal-redis:latest --build-arg https_proxy=$https_proxy --build-arg http_proxy=$http_proxy -f comps/retrievers/multimodal/redis/langchain/Dockerfile .
+docker build --no-cache -t opea/retriever-multimodal-redis:latest --build-arg https_proxy=$https_proxy --build-arg http_proxy=$http_proxy -f comps/retrievers/redis/langchain/Dockerfile .
 ```
 
 ### 3. Build LVM Images

MultimodalQnA/docker_compose/intel/hpu/gaudi/README.md

@@ -75,7 +75,7 @@ docker build --no-cache -t opea/embedding-multimodal:latest --build-arg https_pr
 ### 2. Build retriever-multimodal-redis Image
 
 ```bash
-docker build --no-cache -t opea/retriever-multimodal-redis:latest --build-arg https_proxy=$https_proxy --build-arg http_proxy=$http_proxy -f comps/retrievers/multimodal/redis/langchain/Dockerfile .
+docker build --no-cache -t opea/retriever-multimodal-redis:latest --build-arg https_proxy=$https_proxy --build-arg http_proxy=$http_proxy -f comps/retrievers/redis/langchain/Dockerfile .
 ```
 
 ### 3. Build LVM Images