fix: add disallow examples to docker env

.docker.env

@@ -29,6 +29,12 @@ REDIS_HOST=redis
 REDIS_PORT=6379
 REDIS_PASSWORD=
 
+# Disable registration
+DISALLOW_REGISTRATION=false
+
+# Disable anonymous link creation
+DISALLOW_ANONYMOUS_LINKS=false
+
 # The daily limit for each user
 USER_LIMIT_PER_DAY=50