message: Add postgres migration guide
diff: @@ -17,3 +17,17 @@ is formatted as https://discordapp.com/channels/``guildid``/``channelid``
  * e.g. To set Alice to Admin on her ``example.com`` HS on default config. (``config.yaml``)
  * ``npm run adminme -- -r '!AbcdefghijklmnopqR:example.com' -u '@Alice:example.com' -p '100'``
  * Run ``npm run adminme -- -h`` for usage.
  +
  +### Migrate to postgres from sqlite
  +* Stop the bridge.
  +* Create a new database on postgres and create a user for it with a password.
  + * We will call the database `discord_bridge` and the the user `discord`.
  +* Install `pgloader` if you do not have it.
  +* Run `pgloader ./discord.db postgresql://discord:password@localhost/discord_bridge`
  +* Change the config so that the config contains:
  +
  +```yaml
  +database:
  + connString: "postgresql://discord:password@localhost/discord_bridge"
  +```
  +* All done!
  