fix(subplot.md): add missing template to YAML metadata example

This is an example that's never parsed by Subplot so the missing
"template" has gone unnoticed.

1 files changed, 1 insertions, 0 deletions

diff --git a/subplot.md b/subplot.md
index 65f9830..ce26488 100644
--- a/subplot.md
+++ b/subplot.md
@@ -327,6 +327,7 @@ they are how Pandoc recongizes the block.
 title: "Subplot"
 author: The Subplot project
 date: work in progress
+template: python
 bindings: subplot.yaml
 functions: subplot.py
 ...