Why ex_doc adds "module" to all h tags as link

Questions / Help
1

Hello, Please see this link MishkaInstaller — Mishka installer v0.1.0-alpha.2, as you see it adds module after fragment. but I just put the elixir module doc like this

 ### Events and Hook

How can I delete module in the link?

My ex_doc config in mix file

docs: [
        main: "MishkaInstaller",
        source_ref: "master",
        extras: ["README.md"],
        source_url: @source_url
      ],

Version:
0.34.0

Thank you in advance