mermaid engine version

source/conf.py

@@ -37,6 +37,11 @@ extensions = [
     'sphinxcontrib.mermaid'
 
 ]
+
+# mermaid version
+mermaid_version = "10.9.1"
+
+
 #For internationalization:
 locale_dirs = ['locale/']
 gettext_compact = False