title: Rmarkdown beamer: How to left justify the title page
body: <p>How is it possible to align the title page of my Rmarkdown beamer presentation to the LEFT instead of the default center?</p>
  
  <p>Example , default is center:</p>
  
  <pre><code>---
  title: "Untitled"
  author: "S SS"
  date: "2/4/2018"
  output: beamer_presentation
  ---
  
  ```{r setup, include=FALSE}
  knitr::opts_chunk$set(echo = FALSE)
  ```
  
  ## R Markdown
  
  This is an R Markdown presentation. Markdown is a simple formatting syntax for authoring HTML, PDF, and MS Word documents. For more details on using R Markdown see &lt;http://rmarkdown.rstudio.com&gt;.
  
  When you click the **Knit** button a document will be generated that includes both content as well as the output of any embedded R code chunks within the document.
  </code></pre>
  
  <p><a href="https://i.stack.imgur.com/lGPxw.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/lGPxw.png" alt="enter image description here"></a></p>