Merge branch 'fix-template' into 'develop'

Fix template slides

See merge request R3-core/outreach/presentations-internal!38

template/slides/index.md

-## Presentation Title
-<br><br>
-#### Month XYth, 2019
+# Presentation Title
+
+## Month XYth, 2019
 
 <div style="top: 6em; left: 0%; position: absolute;">
     <img src="theme/img/lcsb_bg.png">
@@ -8,12 +8,12 @@
 
 <div style="top: 5em; left: 60%; position: absolute;">
     <img src="slides/img/r3-training-logo.png" height="200px">
-    <br><br><br><br>
-    <h3>A catchy title</h3>
-    <br><br><br><br>
+    <br><br><br>
+    <h1>A catchy title</h1>
+    <br><br><br>
     <h4>
         Firstname LastName, Title<br><br>
         firstname.lastname@uni.lu<br><br>
         <i>Luxembourg Centre for Systems Biomedicine</i>
     </h4>
-</div>
\ No newline at end of file
+</div>

template/slides/list.json

 [
-    {
-        "filename": "index.md",
-        "attr": {
-        }
-    },
-    {
-        "filename": "overview.md",
-        "attr": {
-        }
-    },
-    {
-        "filename": "thanks.md",
-        "attr": {
-
-        }
-    }
+    { "filename": "index.md" },
+    { "filename": "overview.md" },
+    { "filename": "thanks.md" }
 ]

template/slides/overview.md

-## Overview
+# Overview
 
 0. Subject 1
-1. Subject 2
\ No newline at end of file
+1. Subject 2

template/slides/thanks.md

-## Thank you.
+# Thank you.
 
 <center><img src="slides/img/r3-training-logo.png" height="200px"></center>