docs: add a title for the tutorial

This will let Subplot to format it, which means it should be
automatically published on doc.obnam.org.

Sponsored-by: author

1 files changed, 4 insertions, 0 deletions

diff --git a/tutorial.md b/tutorial.md
index 8a79882..ce5df2e 100644
--- a/tutorial.md
+++ b/tutorial.md
@@ -1,3 +1,7 @@
+---
+title: Obnam tutorial
+...
+
 With the help of this tutorial, you're going to set up Obnam, make your first
 backup, and check that you can restore files from it.