Add optional build tag for experimental BEAN Markdown renderer support

src/cli/entryReaderMDBEAN.go

@@ -0,0 +1,14 @@
+//go:build !noMarkdown && BEAN
+
+package cli
+
+import (
+	"fmt"
+
+	bean "github.com/Trojan2021/BEAN/render"
+)
+
+// renderNote renders the notes section of an entry (in Markdown) to stdout.
+func renderNote(noteLines []string) {
+	fmt.Println(bean.RenderMarkdown(noteLines, width))
+}