docs: use markdown links instead of html

This does lose the _target information associated with the links
but that should be left to the markdown generator generally. In this
case the npm/documentation repo will decide based on the href whether
to apply any target or rel attributes to the links.

Author: lukekarrys

docs/lib/content/commands/npm-audit.md

@@ -81,13 +81,13 @@ The `sig` is generated using the following template: `${package.name}@${package.
 
 Keys response:
 
-- `expires`: null or a simplified extended <a href="https://en.wikipedia.org/wiki/ISO_8601" target="_blank">ISO 8601 format</a>: `YYYY-MM-DDTHH:mm:ss.sssZ`
+- `expires`: null or a simplified extended [ISO 8601 format](https://en.wikipedia.org/wiki/ISO_8601"): `YYYY-MM-DDTHH:mm:ss.sssZ`
 - `keydid`: sha256 fingerprint of the public key
 - `keytype`: only `ecdsa-sha2-nistp256` is currently supported by the npm CLI
 - `scheme`: only `ecdsa-sha2-nistp256` is currently supported by the npm CLI
 - `key`: base64 encoded public key
 
-See this <a href="https://registry.npmjs.org/-/npm/v1/keys" target="_blank">example key's response from the public npm registry</a>.
+See this [example key's response from the public npm registry](https://registry.npmjs.org/-/npm/v1/keys").
 
 ### Audit Endpoints
 

docs/lib/content/commands/npm-team.md

@@ -25,7 +25,7 @@ on your `authtype`.
 
 * create / destroy:
   Create a new team, or destroy an existing one. Note: You cannot remove the
-  `developers` team, <a href="https://docs.npmjs.com/about-developers-team" target="_blank">learn more.</a>
+  `developers` team, [learn more.](https://docs.npmjs.com/about-developers-team)
 
   Here's how to create a new team `newteam` under the `org` org:
 

docs/lib/content/commands/npm-unpublish.md

@@ -8,9 +8,8 @@ description: Remove a package from the registry
 
 <!-- AUTOGENERATED USAGE DESCRIPTIONS -->
 
-To learn more about how the npm registry treats unpublish, see our <a
-href="https://docs.npmjs.com/policies/unpublish" target="_blank"
-rel="noopener noreferrer"> unpublish policies</a>
+To learn more about how the npm registry treats unpublish, see our
+[unpublish policies](https://docs.npmjs.com/policies/unpublish).
 
 ### Warning