update dockerfile

Author: serban-alexandru

src/dockerizers/angular/tests/default/code/dockerizer/Dockerfile

@@ -21,4 +21,5 @@ FROM nginx:latest
 COPY --from=build /app/dist/angular-test /usr/share/nginx/html
 
 # Expose port 80
-EXPOSE 80
+EXPOSE 80
+CMD ["nginx", "-g", "daemon off;"]