Update docs/configuring-playbook-bot-draupnir.md: invite the Draupnir bot after installation

Now that the bot user for Draupnir is created automatically and you no longer need to register it manually since its 2.0.0 version, it does not seem to be sensible to synchronize descriptions about inviting bots between documents for Draupnir and Mjolnir. It is not friendly to instruct to invite the bot which does not exist just yet, only to let the known error message about the nonexistent user displayed.

Signed-off-by: Suguru Hirahara <acioustick@noreply.codeberg.org>

docs/configuring-playbook-bot-draupnir.md

@@ -20,8 +20,6 @@ It is possible to make the management room encrypted (E2EE). If doing so, then y
 
 Once you have created the room you need to copy the room ID so you can specify it on your `inventory/host_vars/matrix.example.com/vars.yml` file. In Element Web you can check the ID by going to the room's settings and clicking "Advanced". The room ID will look something like `!qporfwt:example.com`.
 
-Finally invite the `@bot.draupnir:example.com` account that the playbook will create for you to the management room. Please note that clients can issue a warning that you are attempting to invite a user that does not have a profile and might not exist. This warning is expected as your inviting the bot before its user account exists.
-
 ## End-to-End Encryption support
 
 Decide whether you want to support having an encrypted management room or not. Draupnir can still protect encrypted rooms without encryption support enabled.
@@ -163,6 +161,8 @@ ansible-playbook -i inventory/hosts setup.yml --tags=setup-all,ensure-matrix-use
 
 ## Usage
 
+To use Draupnir, you need to invite the bot (`@bot.draupnir:example.com`) to its management room which you have created earlier.
+
 You can refer to the upstream [documentation](https://the-draupnir-project.github.io/draupnir-documentation/) for additional ways to use and configure Draupnir and for a more detailed usage guide.
 
 Below is a **non-exhaustive quick-start guide** for the impatient.