Merge branch 'issue-4/change-style-md' into 'main'

issue #4: UPDATE style script for generate md in hugo

See merge request !4

app.py

@@ -77,6 +77,7 @@ image: "http://localhost:1337{image_url}"
 summary: "{summary}"
 {edited_line}ShowReadingTime: true
 ---
+---
 
 {content}
 """