Created Docker (markdown)

Docker.md

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+## Setup
+
+```bash
+docker create \
+--name=rss-bridge \
+-v </path/to/whitelist.txt>:/app/public/whitelist.txt \
+-p 3000:80 \
+rssbridge/rss-bridge:latest
+```
+
+And access it using `http://IP_Address:3000`. If you'd like to run a specific version, you can run it by:
+
+```bash
+docker create \
+--name=rss-bridge \
+-v </path/to/whitelist.txt>:/app/public/whitelist.txt \
+-p 3000:80 \
+rssbridge/rss-bridge:$version
+```
+
+Where you can get the versions published to Docker Hub at https://hub.docker.com/r/rssbridge/rss-bridge/tags/. The server runs on port 80 internally, and you can publish it on a different port (change 3000 to your choice).
+
+You can run it using a `docker-compose.yml` as well:
+
+```yml
+version: '2'
+services:
+  rss-bridge:
+    volumes:
+      - whitelist.txt:/app/public/whitelist.txt
+    build:
+      context: .
+    image: rssbridge/rss-bridge:latest
+    ports:
+      - 3000:80
+```
+
+You can save this file as `docker-compose.yml`, create a `whitelist.txt` file next to it (just leave the file empty) before running it using `docker-compose up`. Once it gets running, you can edit the `whitelist.txt` as per the plugins you want to run.
+
+# Container access and information
+
+|Function|Command|
+|===|===|
+|Shell access (live container)|`docker exec -it rss-bridge /bin/sh`|
+|Realtime container logs|`docker logs -f rss-bridge`|