Add custom_fences config to mkdocs.yml

Signed-off-by: Jitse Klomp <[email protected]>

Author: jitseklomp

mkdocs.yml

@@ -59,7 +59,11 @@ markdown_extensions:
   - pymdownx.details
   - pymdownx.highlight
   - pymdownx.inlinehilite
-  - pymdownx.superfences
+  - pymdownx.superfences:
+      custom_fences:
+        - name: mermaid
+          class: mermaid
+          format: !!python/name:mermaid2.fence_mermaid_custom
   - pymdownx.snippets:
       base_path: site-src
       check_paths: true