Fixed 2 bugs in docker-compose files

java-spring-boot/docker-compose.yml

@@ -10,7 +10,7 @@ services:
       - app-network
 
   nginx:
-    image: nginx:alpine
+    image: nginx
     container_name: nginx_spring
     ports:
       - "80:80"

python-flask/docker-compose.yml

@@ -11,7 +11,8 @@ services:
       - .:/app  # Mount your local directory into the container so that live changes are detected
 
   nginx:
-    image: nginx_flask
+    image: nginx
+    container_name: nginx_flask
     ports:
       - "80:80"
     volumes: