Add nginx cache recommendation

README.md

@@ -1,5 +1,7 @@
 # Simple Picture Gallery
 
+A simple picture gallery. No database required. Photos can simply be stored in your file system. Add and remove photos. Simple picture gallery will automatically show them and create thumbnails.
+
 ## Getting Started
 
 ### Information
@@ -8,23 +10,20 @@ Folders should only contain images and folders. Folders should not contain any o
 
 ### Docker
 
+The easiest way to run simple picture gallery is with docker.
+
 ```shell
 docker build . -t simple-picture-gallery
-docker run -p 3005:3001 -v /mnt/data/pictures:/usr/src/app/public --name my-picture-gallery simple-picture-gallery
+docker run -p 3005:3001 -v /mnt/path/to/pictures:/usr/src/app/public --name my-picture-gallery simple-picture-gallery
 ```
 
-### Customization
+#### Customization
 
-Create an environment file `.env`:
+Create an environment file `.env` containing any of the following properties to customize your gallery. All properties are optional. 
 
 ```properties
 VITE_TITLE=My Gallery
 VITE_APPBAR_COLOR=#F8AB2D
-```
-
-Other properties:
-
-```properties
 VITE_FAVICON_HREF=<URL to your favicon>
 ```
 
@@ -32,4 +31,33 @@ And run docker with `--env-file .env`
 
 ```shell
 docker run -p 3005:3001 -v C:/DATA/temp/bla:/usr/src/app/public --env-file .env --name my-picture-gallery simple-picture-gallery
+```
+
+### nginx
+
+It is recommended to use a cache for the API calls so that not every request has to read the file system again.
+
+```nginx
+http {
+
+  proxy_cache_path /var/cache/nginx levels=1:2 keys_zone=picture_gallery_cache:10m max_size=100m inactive=60m use_temp_path=off;
+  
+  
+  server {
+    ...
+
+    location / {
+       proxy_pass http://127.0.0.1:3005;
+    }
+
+    location ~ /(images|directories|folderspreview) {
+       proxy_cache picture_gallery_cache;
+       proxy_cache_valid 200 302 600m;
+       proxy_cache_min_uses 1;
+       proxy_pass http://127.0.0.1:3005;
+    }
+
+    ...
+  }
+}
 ```