Improve README

README.md

@@ -2,6 +2,14 @@
 
 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.
 
+All you need is your photos and [docker](https://www.docker.com/).
+
+Simple Picture Gallery is a modern looking web app due to [Material UI](https://mui.com/material-ui/), [React Photo Album](https://react-photo-album.com/) and [Yet Another React Lightbox](https://yet-another-react-lightbox.com/).
+
+## Screenshots
+
+![Simple Picture Gallery](doc/images/main.png)
+
 ## Getting Started
 
 ### Information
@@ -10,11 +18,11 @@ 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.
+An easy way to run simple picture gallery is with docker.
 
 ```shell
-docker build . -t simple-picture-gallery
-docker run -p 3005:3001 -v /mnt/path/to/pictures:/usr/src/app/public --name my-picture-gallery simple-picture-gallery
+docker pull gitea.forstenlechner.dev/stefan/simple-picture-gallery:latest
+docker run -p 3005:3001 -v /mnt/path/to/pictures:/usr/src/app/public --name my-picture-gallery gitea.forstenlechner.dev/stefan/simple-picture-gallery:latest
 ```
 
 #### Customization
@@ -30,12 +38,34 @@ VITE_FAVICON_HREF=<URL to your favicon>
 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
+docker run -p 3005:3001 -v /mnt/path/to/pictures:/usr/src/app/public --env-file .env --name my-picture-gallery gitea.forstenlechner.dev/stefan/simple-picture-gallery:latest
+```
+
+### Docker compose
+
+Even easier to run it using docker compose. 
+
+```dockerfile
+services:
+  gallery:
+    image: gitea.forstenlechner.dev/stefan/simple-picture-gallery:latest
+    container_name: my-picture-gallery
+    environment:
+      # customize your gallery
+      - VITE_TITLE=My Gallery
+      - VITE_APPBAR_COLOR=#F8AB2D
+    restart: always
+    volumes:
+      - /mnt/path/to/pictures/:/usr/src/app/public
+    ports:
+      - "3005:3001"
 ```
 
 ### nginx
 
-It is recommended to use a cache for the API calls so that not every request has to read the file system again.
+It is recommended to use a cache for the API calls so that not every request has to read from your file system again.
+
+In case you are using nginx as reverse proxy already, here is an example config with a cache.
 
 ```nginx
 http {
@@ -52,12 +82,19 @@ http {
 
     location ~ /(images|directories|folderspreview) {
        proxy_cache picture_gallery_cache;
-       proxy_cache_valid 200 302 600m;
+       proxy_cache_valid 200 302 60m;
        proxy_cache_min_uses 1;
        proxy_pass http://127.0.0.1:3005;
     }
 
+    server_name gallery.domain.com
+
     ...
   }
 }
 ```
+
+> **_NOTE:_**  `proxy_cache_path` and `proxy_cache` need to use the same zone.
+
+See [nginx documentation](https://nginx.org/en/docs/http/ngx_http_proxy_module.html) for more details and parameters.
+