Fixed typo in documentation

squidfunk · squidfunk · commit 7f2f98fadeb1 · 2021-01-02T16:43:46.000+01:00
diff --git a/docs/reference/diagrams.md b/docs/reference/diagrams.md
@@ -25,7 +25,7 @@ render [Mermaid.js][1] diagrams with zero effort:
 
 ``` yaml
 markdown_extensions:
-  - pymdownx.superfences
+  - pymdownx.superfences:
       custom_fences:
         - name: mermaid
           class: mermaid-experimental
