title: Dotted Line in ChartJS
body: <p>I am using the chart from <a href="http://www.chartjs.org" rel="noreferrer">Chart.js</a> to create my charts, and what I want to do is have 2 horizontal lines on the same chart, but one of them should be dotted. 
  I have tried to find solution on Google without success. </p>
  
  <p>Do you have any idea how to do this? </p>
  
  <p>Thanks in advance, </p>