New markdown page showing duplicate top headers

[int-a]

I added a resume.md markdown file and top-level page to my jekyll site that uses the end2end theme and I am hosting it using github pages. For some reason the first header on the page is showing up twice, as shown here: https://imgur.com/krV9est

It looks fine when I build and host the site locally, but when I push to github pages the "Languages and Technologies" header appears twice. Here is the relevant markdown in my resume.md file:

---
layout: page
permalink: /resume/
---

### Languages and Technologies

- Java, SQL, C#.NET, XML, JSON, git, SVN
- Android Studio, Visual Studio, Microsoft SQL Server, Eclipse, Microsoft Office/Visio/Sharepoint

<br>

### Education

Thanks for any help

[int-a]

Fixed. I realized I needed a "title:" tag at the top. New markdown looks like:

---
layout: page
title: resume
permalink: /resume/
---

### Languages and Technologies

- Java, SQL, C#.NET, XML, JSON, git, SVN
- Android Studio, Visual Studio, Microsoft SQL Server, Eclipse, Microsoft Office/Visio/Sharepoint

<br>

### Education