title: Hugo not reading .Rmd files after using blogdown
body: <p>I am working on creating a website using Github Pages and Hugo (proquestionasker.github.io).  Currently, when I create project files or blog articles in RMarkdown, I have to convert them to markdown (.md) files before Hugo/Github will read them. The <a href="https://github.com/rstudio/blogdown" rel="noreferrer">blogdown</a> package seems like it would be a perfect fit for my needs, but I can't get it to work. </p>
  
  <p>I have downloaded both Hugo and blogdown. My steps are currently as follows (working in the project directory as my working directory):</p>
  
  <p>(in R studio)</p>
  
  <pre><code>    # Create new file in the "content/portfolio" folder
      blogdown::new_content("portfolio/new.Rmd", format = "yaml")
  </code></pre>
  
  <p>This creates a new .Rmd document in the folder where I'd expect. The header reads:</p>
  
  <pre><code>    ---
      date: 2016-12-15T16:02:46-08:00
      draft: true
      image: "img/portfolio/map.png"
      showonlyimage: false
      title: test
      ---
  </code></pre>
  
  <p>I continue to add R content to the file as I would with any R document. I save the file. At this point, I just want to test if Hugo can interpret this file before I push the changes to Github, so in R:</p>
  
  <pre><code>    # Build Site
      blogdown::build_site()
  </code></pre>
  
  <p>I receive the normal "site building" feedback that I expect from Hugo. When I look in the public/portfolio folder, I see a "new.Rmd".  So far so good. </p>
  
  <p>The problem comes with actually viewing the site.  I try to preview the site the "normal" Hugo way: </p>
  
  <pre><code>    # In terminal window
      hugo server
  </code></pre>
  
  <p>And then launch <a href="http://localhost:1313/" rel="noreferrer">http://localhost:1313/</a> in my browser window.  My portfolio pieces are displayed on the home page, and all files that are .md format are displayed, but new.Rmd is not. </p>
  
  <p>I thought this may be an issue because <code>hugo server</code> seems to still be building the site using hugo, not blogdown.  So I bypassed previewing the site and went straight to committing the changes to GitHub.  </p>
  
  <p>The way that my site is set-up, I have the master branch (containing all of the site-building items in the 'public' folder) as a subtree of the 'sources' branch. I followed my normal process for updating (as seen below and inspired by <a href="https://hjdskes.github.io/blog/deploying-hugo-on-personal-gh-pages/index.html" rel="noreferrer">this post</a>) but instead of building the site using hugo, I build the site using blogdown. The process is as follows:</p>
  
  <pre><code>    # In terminal window - Adding new documents
      git add -A
      git commit -am "Adding new blogdown documents"
      git push
  
      # Pulling down the master branch into 'public' to help avoid merge conflicts
      git subtree pull --prefix=public \
          git@github.com:ProQuestionAsker/ProQuestionAsker.github.io.git master -m "Merge origin master"
  
      # In RStudio - Build website using blogdown
      build_site()
  
      # In terminal window - Pushing the updated 'public' folder to the 'sources' branch
      git add public
      git commit -m "Pushing updated public folder to source branch"
      git push origin "sources"
  
      # Pushing the updated 'public' folder to the 'master' branch
      git subtree push --prefix public 
          git@github.com:ProQuestionAsker/ProQuestionAsker.github.io.git master
  </code></pre>
  
  <p>The files all appear in my GitHub library as I'd expect them to, but Hugo does not seem to be rendering anything other than .md documents. Those all display as expected on the site.  I'm not sure if this is a Hugo problem or a Blogdown problem, but I can't seem to get it to work.  </p>
  
  <p>Any help would be much appreciated!</p>