Merge pull request #2915 from gwincr11/cg-req-access

feat: Add accessibility fields to requirements diagram

src/diagrams/class/parser/classDiagram.jison

@@ -187,6 +187,7 @@ Function arguments are optional: 'call <callback_name>()' simply executes 'callb
 
 start
     : mermaidDoc
+    | statments
     | direction
     | directive start
     ;