Update plex-cdn.conf

sites-enabled/plex-cdn.conf

@@ -1,6 +1,8 @@
-include snippets/magic.conf;
+# This config goes on all machines.
+# To use the image cache, run the command in `` below.
 # `mkdir -p /var/cache/nginx/plex && chown www-data: /var/cache/nginx -R` prior to using
 proxy_cache_path /var/cache/nginx/plex levels=1:2 keys_zone=plex:100m max_size=30g inactive=7d use_temp_path=off;
+include snippets/magic.conf;
 
 server {
   listen 80;
@@ -94,4 +96,4 @@ server {
     default_type "text/plain";
     autoindex    on;
   }
-}
+}