docs: add docker instructions to readme

Author: Preloading

README.md

@@ -8,6 +8,26 @@ I do not recommend hosting a public instance of this software yet, as work is st
 
 I will not be guarenting anything. I'll try to target both bluesky & mastodon, but no guarentee yet. Right now looking like bluesky will be the primary target due to some technical challenges with mastodon
 
+## Hosting instructions
+
+Docker
+```yaml
+services:
+  twitter-bridge:
+    image: ghcr.io/preloading/twitterapibridge:dev # main = releases/stable, dev=latest commits/test version
+    environment:
+      - TWITTER_BRIDGE_DATABASE_TYPE=sqlite
+      - TWITTER_BRIDGE_DATABASE_PATH=/config/database/sqlite.db
+      - TWITTER_BRIDGE_CDN_URL=http://127.0.0.1
+      - TWITTER_BRIDGE_SERVER_PORT=3000
+      - TWITTER_BRIDGE_TRACK_ANALYTICS=true
+      - TWITTER_BRIDGE_DEVELOPER_MODE=false
+    ports:
+      - "80:3000"
+    volumes:
+      - '/opt/testtwitterbridge/sqlite:/config/sqlite'
+```
+
 ### This is not (and probably won't be for a while) a 100% accurate recreation of the twitter API
 
 most of this readme todo