add piwik, closes #8

mkdocs.yml

@@ -17,6 +17,7 @@ pages:
 
 theme:
   name: material
+  custom_dir: theme
 
 markdown_extensions:
   - mdx_math:

theme/main.html

+{% extends "base.html" %}
+
+{% block analytics %}
+<!-- Piwik -->
+<script type="text/javascript">
+  var _paq = _paq || [];
+  // tracker methods like "setCustomDimension" should be called before "trackPageView"
+  _paq.push(['trackPageView']);
+  _paq.push(['enableLinkTracking']);
+  (function() {
+    var u="//piwik.kwant-project.org/";
+    _paq.push(['setTrackerUrl', u+'piwik.php']);
+    _paq.push(['setSiteId', '6']);
+    var d=document, g=d.createElement('script'), s=d.getElementsByTagName('script')[0];
+    g.type='text/javascript'; g.async=true; g.defer=true; g.src=u+'piwik.js'; s.parentNode.insertBefore(g,s);
+  })();
+</script>
+<!-- End Piwik Code -->
+{% endblock %}