diff --git a/markdown.go b/markdown.go
new file mode 100644
index 0000000..6b326f0
--- /dev/null
+++ b/markdown.go
@@ -0,0 +1,36 @@
+package main
+
+import (
+	"bytes"
+
+	"gitlab.com/golang-commonmark/markdown"
+
+	"github.com/yuin/goldmark"
+	"github.com/yuin/goldmark/extension"
+	"github.com/yuin/goldmark/renderer/html"
+)
+
+func renderMarkdown(pageText string) string {
+	md := markdown.New(
+		markdown.HTML(true),
+		markdown.XHTMLOutput(true),
+	)
+	pageText = md.RenderToString([]byte(pageText))
+	return pageText
+}
+
+func renderMarkdown2(pageText string) string {
+	md := goldmark.New(
+		goldmark.WithExtensions(extension.GFM),
+		goldmark.WithRendererOptions(
+			html.WithXHTML(),
+			html.WithUnsafe(),
+		),
+	)
+	var buf bytes.Buffer
+	if err := md.Convert([]byte(pageText), &buf); err != nil {
+		panic(err)
+	}
+
+	return buf.String()
+}