add examples and docs

[dfang]

can you add some examples and docs, so for the people who're interested on this project can get started on this without digging into source code or godoc ....

i'm evaluating this, i can contribute some examples ...

[taylorchu]

thanks for contributing! you can add some examples with https://golang.org/pkg/testing/#hdr-Examples.

[digininja]

How backward compatible is this with version 1? Do all/some/none of the examples and docs from version 1 apply to version 2?

[zachwalton]

Do all/some/none of the examples and docs from version 1 apply to version 2?

No based on a few minutes of looking into it; NewEnqueuer from the v1 example docs is gone, and github.com/gomodule/redigo/redis.Pool has been replaced with github.com/go-redis/redis.UniversalClient.

I think periodic enqueueing also isn't supported yet, which is a core feature for me so I'll stick with V1 for now.

Thanks for all the hard work on this project, excited to see V2 take over at some point :)