doc: add document for profiling and heap snapshot
@cola119 closed https://github.com/nodejs/node/pull/43018, probably because it had sat for so long without action. I think we should land it. Can folks please take a look? @nodejs/diagnostics
Do not update/delete: Banner broadcast message test data
Do not update/delete: Notification broadcast message test data
@cola119 closed https://github.com/nodejs/node/pull/43018, probably because it had sat for so long without action. I think we should land it. Can folks please take a look? @nodejs/diagnostics