Documentation missing for ignoreOutgoingRequestHook

[jsumners-nr]

opentelemetry-js/experimental/packages/opentelemetry-instrumentation-http/README.md

Line 64 in 8e50498

| `ignoreOutgoingRequestHook` | `IgnoreOutgoingRequestFunction` | Http instrumentation will not trace all outgoing requests that matched with custom function |

How is this setting supposed to be used? What are the parameters to the function? What is the function supposed to return? What do the return values indicate to the hook invoker?

[pichlermarc]

I agree. All hooks in that instrumentation are in dire need of documentation.
There are lots of ways these can be used incorrectly too. We should also update the tsdoc for these as they are currently also very vague.