Include does not work

[tillepille]

When trying the example from the readme I encounter an

$ tree .
.
├── disclaimer.md
└── test.md
$ cat test.md
<!-- Include: disclaimer.md -->
<!-- Title: Test -->

# this is a test
file

$ mark <options> --dry-run
ERROR encountered unknown header "Include" line: "<!-- Include: disclaimer.md -->"

Is this due

mark/pkg/mark/meta.go

Line 22 in bf4bbbe

type Meta struct {

is missing an HeaderInclude?

$ mark -v
5.2.1

does happen with docker container also.

[kovetskiy]

Thanks, should be fixed now