title: csv file containing 2 rows and 2 columns is not rendered in R markdown
body: <p>I'm trying to display a CSV file in R markdown, but it's not showing up. I use the same code for other CSV files, and it works fine. There are no errors, just an empty space.</p>
  
  <p>The only difference between this CSV file and the others is that this one is exceptionally small (2 columns, 2 rows, each of the 4 cells containing a single word.)</p>
  
  <p>The code that i used is this:</p>
  
  <pre><code>---
  title: "Test"
  author: "Me"
  date: "1/8/2020"
  output: html_document
  ---
  
  ```{r echo = FALSE, results = 'asis', include = FALSE}
  library(dplyr)
  library(knitr)
  library(kableExtra)
  ```  
  
  ```{r echo = FALSE, results = 'asis'}
  data &lt;- select(read.csv("test.csv", stringsAsFactors = F))
  kable(data, caption = "This is data.") %&gt;% kable_styling(bootstrap_options = "bordered", full_width = T) %&gt;% scroll_box(width = "100%", height = "200px")
  ```
  </code></pre>
  
  <p><a href="https://github.com/errslima/data/blob/master/test.csv" rel="nofollow noreferrer">test.csv download</a></p>
  
  <p>edit: here is the absolute shortest code i could make, replicating the error. this only contains essential code that is used to read and display the csv file.</p>
  
  <pre><code>```{r}
  library(dplyr)
  library(knitr)
  library(kableExtra)
  
  data &lt;- select(read.csv("test.csv"))
  kable(data)
  ```
  </code></pre>