Add in .env.example for setting ports, fix upload limit, fix bounding box, can now dismiss previous image, change markdown expectation to HTML - not MD. updated README with nvidia driver/container instructions

docker-compose.yml

@@ -2,9 +2,14 @@ services:
   backend:
     build: ./backend
     container_name: deepseek-ocr-backend
+    env_file:
+      - .env
     environment:
-      MODEL_NAME: deepseek-ai/DeepSeek-OCR
-      HF_HOME: /models
+      MODEL_NAME: ${MODEL_NAME:-deepseek-ai/DeepSeek-OCR}
+      HF_HOME: ${HF_HOME:-/models}
+      API_HOST: ${API_HOST:-0.0.0.0}
+      API_PORT: ${API_PORT:-8000}
+      MAX_UPLOAD_SIZE_MB: ${MAX_UPLOAD_SIZE_MB:-100}
     volumes:
       - ./models:/models
     deploy:
@@ -16,7 +21,7 @@ services:
               capabilities: [gpu]
     shm_size: "4g"
     ports:
-      - "8000:8000"
+      - "${API_PORT:-8000}:${API_PORT:-8000}"
     networks:
       - ocr-network
 
@@ -24,7 +29,7 @@ services:
     build: ./frontend
     container_name: deepseek-ocr-frontend
     ports:
-      - "3000:80"
+      - "${FRONTEND_PORT:-3000}:80"
     depends_on:
       - backend
     networks: