update oa_query and oa_request examples

[trangdata]

Closes #202

[yjunechoe]

LGTM!

[yjunechoe]

Unrelated, but FYI both devtools::check() and urlchecker::url_check() are throwing a warning for the link to the Midjourney website at the end of the readme - it's not a dead link so not sure what the issue is but just noting for future since CRAN can get picky about urls.

✖ Error: README.md:607:40 403: Forbidden
Package hex was made with [Midjourney](https://www.midjourney.com/home/)
                                       ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

[trangdata]

Thanks @yjunechoe! Where do you see this warning? I ran both functions and am not seeing this error.

[yjunechoe]

Oh huh maybe this was just me! On second thought, the GHA should also catch this (and all passed) so maybe not an actual issue. I'll see if I can reproduce it when I'm back on my computer (btw that specific output I copied was from url_check())