update for mkdocs 1

extra_markdown.tpl

@@ -6,7 +6,7 @@
 {%- set fname = output.metadata.filenames['application/vnd.plotly.v1+json'] -%}
 {%- set plotly_url = fname | path2url -%}
 {%- set div_id = fname.split('/') | last -%}
-<div id="{{div_id}}"></div>
+<div id="{{div_id}}"><img ></img></div>
 
 <script>
 window.addEventListener('load', function() {

mkdocs.yml

@@ -4,7 +4,7 @@ repo_name: source
 edit_uri: edit/master/src/
 site_description: |
   Lecture notes for the TU Delft course TN2844 Solid state physics
-pages:
+nav:
   - Intro: 'index.md'
   - Phonons and specific Heat: 'lecture_1.md'
   - Free electron model: 'lecture_2.md'