change theme

mkdocs.yml

-site_name: Documentation IT4Innovations
+site_name: Documentation
 theme_dir: 'it4i_theme'
 extra_css: [css/extra.css]
 docs_dir: docs.it4i
@@ -203,4 +203,4 @@ markdown_extensions:
   - codehilite(css_class=code)
   - admonition
   - toc:
-      permalink: '#'
+      permalink: ''