github newrelic/docs-website release-10.21.2021-10.53

🚀 What's new?

@cade-conklin - DO NOT MERGE YET NRDIAG ->
@cade-conklin - Update run-diagnostics-cli-nrdiag.mdx ->
@cade-conklin - Update run-diagnostics-cli-nrdiag.mdx ->
@cade-conklin - Update pass-command-line-options-nrdiag.mdx ->
@cade-conklin - Update diagnostics-cli-licensing-security.mdx ->
@cade-conklin - Update pass-command-line-options-nrdiag.mdx ->
@cade-conklin - Update run-diagnostics-cli-nrdiag.mdx ->
@cade-conklin - Create diagnostics-cli-200.mdx ->
@cade-conklin - Update diagnostics-cli-200.mdx ->
@cade-conklin - Screenshot for Diagnostics Output Nerdlet ->
@cade-conklin - Update interpret-nrdiag-output.mdx ->
@cade-conklin - Update interpret-nrdiag-output.mdx ->
@cade-conklin - Delete Screen Shot 2021-10-13 at 11.23.47 AM.png ->
@cade-conklin - Add files via upload ->
@cade-conklin - Update interpret-nrdiag-output.mdx ->
@cade-conklin - Update interpret-nrdiag-output.mdx ->
@cade-conklin - Update interpret-nrdiag-output.mdx ->
@mmfred - reduced image size ->
@bradleycamacho - fix: update image ->
@alvarocabanas - PowerDNS docs ->
@x8a - Merge pull request #4433 from alvarocabanas/acabanas/powerDNS ->
@daynaslord - Update instant-observability-10-13-21.md ->
@daynaslord - Update nr1-automap.md ->
@daynaslord - Update wn-ajax-defaults-on.md ->
@x8a - Merge pull request #4437 from daynaslord/patch-29 ->
@x8a - Merge pull request #4434 from daynaslord/patch-27 ->
@x8a - chore(whats-new): Relaunching gatsby checks ->
@zuluecho9 - Docs site(fix): remove TDP mentions ->
@mmfred - Merge pull request #4380 from newrelic/test-image-branch ->
@x8a - Merge pull request #4435 from daynaslord/patch-28 ->
@bradleycamacho - fix: general copy edits ->
@bradleycamacho - Merge pull request #4194 from cade-conklin/patch-3 ->
@dbarnesbrownNR - Merge pull request #4438 from newrelic/Removals-of-FSO-and-TDP ->

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