Add an example for reading message headers

[kaxap]

Addressing #23

[kaxap]

@jgallagher is this fine, or is it better to create an example file in examples folder?

[kaxap]

bump

[kaxap]

any feedback on this?

[jgallagher]

@kaxap Sorry I left this hanging for so long! This doesn't work as currently written because the delivery module is private, so the example you added doesn't show up in the generated pages from rustdoc.

I think it would be great to add something that demonstrates this to the examples, though. All the current examples have a partner example that can be run at the same time to see it in action. What would you think about this plus a corresponding example that sends messages with a custom header set?

[kaxap]

hey, thanks for the reply! Unfortunately, I am not programming in rust for the last couple of months. I'll give this MR another try maybe in 3-4 weeks time if that's okay.

[jgallagher]

Sure, no problem! 👍

I left this hanging for a long time, take as much time as you want.