feat: parse template meta

parse.go

@@ -0,0 +1,16 @@
+package main
+
+import (
+	"fmt"
+
+	"gopkg.in/yaml.v3"
+)
+
+func parseFrontmatter(input string) (meta TemplateMeta, err error) {
+	err = yaml.Unmarshal([]byte(input), &meta)
+	if err != nil {
+		err = fmt.Errorf("Failed to parse frontmatter: %w", err)
+		return
+	}
+	return
+}