revert, link to _episodes_rmd/Intro_to_R.Rmd does not work as with _e…

…pisodes/xxx.md

_includes/swc/schedule.html

@@ -5,7 +5,7 @@ <h3>Day 1</h3>
       <tr> <td>Before</td> <td><a href="{{ site.pre_survey }}{{ site.github.project_title }}" target="_blank" rel="noopener noreferrer">Pre-workshop survey</a> </td> </tr>
       <tr> <td>08:30</td>  <td>Arrival and Initial Set-up</td> </tr>
       <tr> <td>09:00</td>  <td>Introduction to the workshop and tools</td> </tr>
-      <tr> <td>09:30</td>  <td><a href="{{page.root}}{%link _episodes_rmd/Intro_to_R.Rmd%}">Introduction to R</a></td> </tr>
+      <tr> <td>09:30</td>  <td>Introduction to R</td> </tr>
       <tr> <td>10:30</td>  <td>Morning Tea</td> </tr>
       <tr> <td>10:45</td>  <td>Introduction to R (cont'd)</td> </tr>
       <tr> <td>12:30</td>  <td>Lunch break</td> </tr>