fix: use root folder /app/token/

Dockerfile

@@ -21,7 +21,6 @@ RUN apt update -y && \
     apt-get autoremove && \
     apt-get clean && \
     rm -rf /var/lib/apt/lists/* && \
-    mv simple-oidc-client-php/* . && \
-    rm -rf simple-oidc-client-php
+    mv simple-oidc-client-php token
 
 EXPOSE 9000

README.md

@@ -4,4 +4,8 @@ A docker image with https://github.com/rciam/simple-oidc-client-php
 
 ## Volumes
 
-You need to mount `config.php` into `/app/` inside the container. See [documentation](https://github.com/rciam/simple-oidc-client-php#simple-oidc-client---authentication) or [example config](https://github.com/rciam/simple-oidc-client-php/blob/master/example-config.php) for inspiration.
+You need to mount `config.php` into `/app/token/` inside the container. See [documentation](https://github.com/rciam/simple-oidc-client-php#simple-oidc-client---authentication) or [example config](https://github.com/rciam/simple-oidc-client-php/blob/master/example-config.php) for inspiration.
+
+## Usage
+
+You can use nginx with fastcgi_pass (port 9000). The root folder is `/app/token/`.