Add meta descriptions to the Userguide and Tutorial.

docs/tutorial/checking_logs.md

@@ -1,3 +1,7 @@
+---
+description: Check the KumoMTA logs to confirm your test messages succeeded, using the built-in tailer utility to monitor reception and delivery events in real time.
+---
+
 # Check for success in the logs
 
 When diagnosing the failure (or monitoring the success) of your test messages,

docs/tutorial/installing_kumomta.md

@@ -1,3 +1,7 @@
+---
+description: Install KumoMTA from prebuilt repositories, with a Rocky Linux example using dnf to set up the openrepo repo and install the kumod daemon in minutes.
+---
+
 # Installing KumoMTA
 
 Pre-built repos are available for supported Operating Systems, making installation straightforward. 

docs/tutorial/next_steps.md

@@ -1,3 +1,7 @@
+---
+description: You have finished the KumoMTA tutorial. See where to go next in the User Guide to learn more about installation, configuration, operation, and advanced policy.
+---
+
 # Next Steps
 
 With KumoMTA installed, configured, and tested, the tutorial is complete.

docs/tutorial/quickstart.md

@@ -1,3 +1,7 @@
+---
+description: A quickstart tutorial for experienced MailOps admins to install and configure KumoMTA on Rocky Linux 9, covering prerequisites and a fast non-production setup.
+---
+
 # Quickstart Tutorial
 
 !!!warning

docs/tutorial/server_environment.md

@@ -1,3 +1,7 @@
+---
+description: Size your KumoMTA server environment, calculating network, storage, CPU, and RAM needs from your message volume, size, and spool and log capacity requirements.
+---
+
 # Environmental Considerations
 
 When deciding on server hardware, senders must balance vertical and horizontal scaling based on their preferences. KumoMTA is built to support both vertical and horizontal scaling, with both single-node performance of several million messages per hour, as well as support for clustered installations.

docs/tutorial/starting_kumomta.md

@@ -1,3 +1,7 @@
+---
+description: Start KumoMTA with systemctl, restart it to apply config changes, enable it to launch at boot, or run the kumod daemon manually from the command line.
+---
+
 # Starting KumoMTA
 
 If you followed all the instructions above without errors, you should now have a working MTA on a properly sized server.

docs/tutorial/system_preparation.md

@@ -1,3 +1,7 @@
+---
+description: Prepare your server for KumoMTA, covering OS installation on AWS, package updates, firewall setup, and generating a self-signed TLS certificate.
+---
+
 # System Preparation
 
 Now that we know **_what_** to build, lets go ahead and build it.

docs/tutorial/testing_kumomta.md

@@ -1,3 +1,7 @@
+---
+description: Test your KumoMTA installation by sending mail from the host with telnet on port 25, the curl HTTP injection API, or Swaks to confirm end-to-end delivery.
+---
+
 # Testing KumoMTA
 
 Now that you have KumoMTA installed, you should test it from the command line of the installed host. This is easy if you installed the basic tools as described earlier.