use latest thebelab

mkdocs.yml

@@ -57,7 +57,7 @@ extra_css:
 
 extra_javascript:
   - 'https://cdnjs.cloudflare.com/ajax/libs/mathjax/2.7.3/MathJax.js?config=TeX-AMS_HTML'
-  - 'scripts/thebelab-custom.js'
+  - 'https://unpkg.com/thebelab@0.5.0/lib/index.js'
   - 'scripts/mathjaxhelper.js'
   - 'scripts/thebelabhelper.js'
   - 'scripts/x3dom.js'

theme/main.html

@@ -20,7 +20,6 @@
 
 {% block scripts %}
 <!-- ThebeLab config -->
-<!-- IMPORTANT: Everytime a python file is changed, ref needs to be updated to the latest commit! -->
 <script type="text/x-thebe-config">
   {
     predefinedOutput: true,