fixes broken links, adds checker workarounds (#2878)

docs/docs/identity-providers/okta.md

@@ -97,5 +97,5 @@ IDP_SERVICE_ACCOUNT="REPLACE_ME" # base64 encoded JSON object
 [environmental variables]: https://en.wikipedia.org/wiki/Environment_variable
 [oauth2]: https://oauth.net/2/
 [openid connect]: https://en.wikipedia.org/wiki/OpenID_Connect
-[pomerium-install]: /docs/install/
+[pomerium-install]: /docs/install/readme.md
 [Group ID]: https://developer.okta.com/docs/reference/api/groups/

docs/docs/topics/device-identity.md

@@ -57,7 +57,7 @@ Pomerium supports policies that use device identity since version [0.16.0](/docs
 
 To get started, review the following pages:
 
-- [Pomerium Policy Language](/docs/topcics/ppl.md) to learn how to build policies that use device ID.
+- [Pomerium Policy Language](/docs/topics/ppl.md) to learn how to build policies that use device ID.
 - [Enroll a Device](/guides/enroll-device.md) to teach end-users how to enroll devices on Pomerium.
 - [pomerium/webauthn](https://github.com/pomerium/webauthn) on GitHub, our implementation of the WebAuthn specification.
 

docs/docs/upgrading.md

@@ -44,7 +44,7 @@ To improve performance, IdP directory synchronization for GitHub now uses the Gr
 ### CLI Source and Packaging Update
 `pomerium-cli` has been factored out of the core repository and now resides at <https://github.com/pomerium/cli>. If you currently install the CLI tool from [Packages](/docs/releases.md#packages-2) or [Homebrew](/docs/releases.md#homebrew), no changes should be required to your process. However, users of docker images or direct github release downloads will need to update their references.
 
-Please see the [updated install instructions](/docs/releases.html#pomerium-cli) for additional details.
+Please see the [updated install instructions](/docs/releases.md#pomerium-cli) for additional details.
 
 # Since 0.14.0