inspector,doc: update hint text, add guide
Checklist
-
make -j8 test
(UNIX), orvcbuild test nosign
(Windows) passes -
tests and/or benchmarks are included -
documentation is changed or added -
commit message follows commit guidelines
Affected core subsystem(s)
inspector, doc
Description of change
Updates hint text for --inspect
to a generic websockets URL and reference to more info on interface and available clients. Includes an initial draft of the guide with that info.
Tests for new message included too.
Fixes https://github.com/nodejs/node/pull/7182 /cc @nodejs/diagnostics