A Help_text.t represents the documentation for a collection of commands. It can be
displayed as a Vdom node.
This can be used to create a web ui help menu.
module View_spec : sig ... endmodule Command : sig ... endval empty : tval is_empty : t ‑> boolval view : ?sep:string ‑> t ‑> View_spec.t ‑> Incr_dom_widgets__.Import.Vdom.Node.tview displays a help text table with one row per command.
view_rows is similar to view, but returns a list of row nodes instead of wrapping
them in a table node.
val view_rows : ?sep:string ‑> t ‑> View_spec.t ‑> Incr_dom_widgets__.Import.Vdom.Node.t list