Updated README and screenshot

README.md

@@ -2,11 +2,27 @@
 
 ![Screenshot of Tube](./screenshot.png)
 
+Tube is a standalone web app that periodically fetches the RSS feeds of selected YouTube channels.
+A static `index.html` is created with a chronological view of all the published videos from subscribed channels.
+The app doesn't rely on the YouTube API and only uses the RSS feeds of the channels.
+The aim is to be simple and straightforward, KISS.
+
 ## Docker image
 
-To build the docker image localy:
+To build the docker and run image localy:
 
     docker build -t yadomi/tube .
+    docker run -it -rm --name tube yadomi/tube
+
+Take a look at the compose file for volumes mount and other options.
+
+https://github.com/yadomi/tube/blob/master/docker-compose.yml
+
+and also the list of env variable:
+
+https://github.com/yadomi/tube/blob/65c407ecdeda765b7356a02d34ccc3c54e121dc1/main.ts#L11-L50
+
+## Without docker
 
 To run the app localy without a docker container:
 

docker-compose.yml

@@ -7,6 +7,5 @@ services:
     environment:
       - CRON_QUEUE_UPDATE="*/30 * * * *"
     volumes:
-      - ./data:/app/data
-      - ./public:/app/public
-      - ./feeds.txt:/app/feeds.txt
+      - ./data:/app/data # internal data used by Tube (eg: database, user settings ect...)
+      - ./public:/app/public # public data used by Tube (eg: generated index.html ect...)