In doxyen i am able to generate all the sequence diagrams and other stuff something like below. I write this in my readme.md file and the doxygen parses this readme file and the it includes all the plantuml diagrams which are written with below rules.
@startuml
!include myplanumlfile.puml
@enduml
But why i am not able to do the same for mindmap something like this.
@startmindmap
!include myplantumlfile.puml
@endmindmap