Updated docs, new docker tags

doc/IMPORTING.md

@@ -0,0 +1,57 @@
+## Importing from Version 1
+
+Thanks for using Nginx Proxy Manager version 1. It sucked.
+
+But it worked.
+
+This guide will let your import your configuration from version 1 to version 2.
+
+**IMPORTANT: This will make changes to your `letsencrypt` folder and certificate files!** Make sure you back them up first.
+
+
+### Link your previous folders in your new docker stack
+
+In version 1, the docker configuration asked for a `config` folder to be linked and a `letsencrypt` folder. However in version 2, the
+configuration exists in the database, so the `config` folder is no longer required. However if you have this folder linked in a
+version 2 stack, the application will automatically import that configuration the first time it finds it.
+
+Following the [example configuration](../example):
+
+```yaml
+version: "3"
+services:
+  app:
+    image: jc21/nginx-proxy-manager:2
+    restart: always
+    ports:
+      - 80:80
+      - 81:81
+      - 443:443
+    volumes:
+      - ./config.json:/app/config/production.json
+      - ./data:/data
+      - ./letsencrypt:/etc/letsencrypt  # this is your previous letsencrypt folder
+      - ./config:/config                # this is your previous config folder
+    depends_on:
+      - db
+  db:
+    image: mariadb
+    restart: always
+    environment:
+      MYSQL_ROOT_PASSWORD: "password123"
+      MYSQL_DATABASE: "nginxproxymanager"
+      MYSQL_USER: "nginxproxymanager"
+      MYSQL_PASSWORD: "password123"
+    volumes:
+      - ./data/mysql:/var/lib/mysql
+```
+
+After you start the stack, the import will begin just after database initialize.
+
+Some notes:
+- After importing, a file is created in the `config` folder to signify that it has been imported and should not be imported again.
+- Because no users previously existed in the version 1 config, the `admin@example.com` user will own all of the imported data.
+- If you were crazy like me and used Nginx Proxy Manager version 1 to proxy the Admin interface behind a Access List, you should
+really disable the access list for that proxy host in version 1 before importing in to version 2. The app doesn't like being behind basic
+authentication and it's own internal authentication. If you forgot to do this before importing, just hit the admin interface directly
+on port 81 to get around your basic authentication access list.