title: How to get rid of rouge "true" in Rmarkdown when setting toc: true in Front Matter
body: <p>Here's an example of my front matter in an Rmarkdown document.</p>
  
  <pre><code>---
  description: "Exploring the depths of harmony starts with scales. Click 
  on to learn every poossible functional scale in western music."
  title: "Scales"
  date: "2017-05-12"
  draft: false
  weight: 200
  bref: "Harmony in music comes from scales. Each unique functional scale 
  represents an opportunity for a triad that is surrounded by a different 
  set of extensions or color notes."
  toc: true
  script: 'scales'
  ---
  </code></pre>
  
  <p>Problem is, the word "true" is showing up in my html output of the Rmarkdown. Any idea how to fix? </p>
  
  <p>Let me know if you need more information, I have sort of a complicated set up going on using blogdown.</p>