First attempt to explain how config works in receive adapters

[lionelvillard]

Proposed Changes

• First attempt to explain how config works in receive adapters. Not meant to be too extensive yet

Release Note

Docs

[knative-test-reporter-robot]

The following jobs failed:

Test name	Triggers	Retries
pull-knative-eventing-conformance-tests		0/3

Failed non-flaky tests preventing automatic retry of pull-knative-eventing-conformance-tests:

test/conformance.TestBrokerV1Beta1DataPlaneConsumer

[lionelvillard]

This fails due to:

CONT  TestBrokerV1Beta1DataPlaneConsumer
    event_info_store.go:245: Timeout waiting for at least 2 matches.
        Error: FAIL MATCHING: saw 0/2 matching events.

How reliable is port-forward?:

monitoring.go:78: Executing command: kubectl port-forward second-logger-pod 47736:8392 -n test-broker-v1-beta1-data-plane-consumer-rcq7z
    monitoring.go:71: running second-logger-pod port-forward in background, pid = 50982

@vaikas

[lionelvillard]

/test pull-knative-eventing-conformance-tests

[vaikas]

port forwarding reliability is something that @slinkydeveloper was looking at
#3570

[lionelvillard]

/test pull-knative-eventing-conformance-tests

[aliok]

/assign

[aliok]

/lgtm
/approve
/hold

Thanks for this doc work. I only have a small comment.
Feel free to unhold.

[lionelvillard]

/unhold

[aliok]

/lgtm
/approve

[knative-prow-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: aliok, lionelvillard

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