fix: correct JSON formatting for LOGOS environment variable in docker-compose

Author: yixuanwu4

examples/public/docker-compose.yaml

@@ -77,7 +77,7 @@ services:
       API_URL: https://api.test.example.com
       THEME_COLOR: uzhGold
       TITLE: LEMON
-      LOGOS: "[{\"path\": \"/logos/uzh-logo.svg\", \"alt\": \"University of Zurich Logo\", \"url\": \"https://uzh.ch\"}, {\"path\": \"/logos/weltentdecker-logo.png\", \"alt\": \"Kleine Weltentdecker Logo\", \"url\": \"https://www.psychologie.uzh.ch/de/bereiche/dev/devpsy/Weltentdecker.html\"}]"
+      LOGOS: '[{"path": "/logos/uzh-logo.svg", "alt": "University of Zurich Logo", "url": "https://uzh.ch"}, {"path": "/logos/weltentdecker-logo.png", "alt": "Kleine Weltentdecker Logo", "url": "https://www.psychologie.uzh.ch/de/bereiche/dev/devpsy/Weltentdecker.html"}]'
     volumes:
       - ./logo.svg:/usr/share/nginx/html/logo.svg
       - ./logos/:/usr/share/nginx/html/logos/