Add word 'header' to ListView Hdr paragraph, to make that option easier to find with search

[neogna2]

https://www.autohotkey.com/docs/commands/ListView.htm#Options
Change

Hdr: Specify -Hdr (minus Hdr) to omit the special top row that contains column titles. To make it visible later, use GuiControl, +Hdr, MyListView.

to

Hdr: Specify -Hdr (minus Hdr) to omit the header (the special top row that contains column titles). To make it visible later, use GuiControl, +Hdr, MyListView.

[TheDewd]

I created a pull request on your behalf. No guarantee it will be added though.

https://github.com/Lexikos/AutoHotkey_L-Docs/pull/456

FYI: You can request changes from the documentation github.

[neogna2]

@TheDewd Thank you