add and adjust assets folder

.gitignore

+.DS_Store

_config.yml

+theme: jekyll-theme-minimal
+logo: /assets/img/r3-training-logo.png
+title: Advanced git training - Practice repository
+description: This is a practice repository for advanced git training.
+url: https://lcsb-biocore.github.io/advanced-git-practice/
+collections:
+  attendees:
+    output: true

index.md

+## What is this?
+
+This page is an automatically generated page of the course attendees.
+
+Add your name and your **personal page** to this site!
+
+
+## List of course attendees
+
+{% for attendee in site.attendees %}
+  <h2>
+  {{ forloop.index }}.<a href="{{ attendee.url | prepend: site.baseurl }}">
+      {{ attendee.name }} - {{ attendee.position }}
+    </a>
+  </h2>
+{% endfor %}