improve the documentation about post-mortem debugging

[mcollina]

It came out from diagnostics summit that we have very little documentation about post mortem debugging in our website.

This should include node-rerport, heapdumps, llnode, mdb etc.

[richardlau]

Cc @nodejs/post-mortem

[rnchamberlain]

There was some work on this last year, but it did not make it into the node.js.org website:
#92
https://github.com/naugtur/node-diagnostics-howtos

[davepacheco]

This would be great. I submitted a PR a few years ago to add top-level sections to the Node docs for both postmortem debugging and dynamic tracing:
nodejs/node-v0.x-archive#9206

but it never made it in. I ended up moving the postmortem debugging parts to a usage guide for mdb_v8:
https://github.com/joyent/mdb_v8/blob/master/docs/usage.md

Much of that is mdb_v8-specific, but much of it is general, and I would be happy for any of it to be used for general documentation if people find it to be useful.

[gireeshpunathil]

should this remain open? [ I am trying to chase dormant issues to closure ]

[github-actions]

This issue is stale because it has been open many days with no activity. It will be closed soon unless the stale label is removed or a comment is made.

[mmarchini]

I believe this falls under the bigger User Journeys and Documentations initiatives, so will close it for now. Feel free to reopen if you want to continue discussion though.