Improved post template

Author: weiran

templates.js

@@ -1,8 +1,9 @@
 const postTemplate = (title, date, passthroughUrl, content) => {
     const post = 
 `---
-title: ${title}
-date: "${date}"${passthroughUrl ? `passthroughUrl: ${passthroughUrl}` : ''}
+title: "${title}"
+date: "${date}"${passthroughUrl ? `
+passthroughUrl: ${passthroughUrl}` : ''}
 ---
 
 ${content}`