Fix link for oss auth page. (#187) (#195)

Signed-off-by: Zain Asgar <zasgar@gmail.com>
Signed-off-by: Hannah Troisi <htroisi@pixielabs.ai>

Co-authored-by: Zain Asgar <zasgar@pixielabs.ai>

Author: vihangm

content/en/05-reference/01-admin/01-authentication.md

@@ -13,7 +13,7 @@ Pixie uses [Hydra](https://www.ory.sh/hydra/)/[Kratos](https://www.ory.sh/kratos
 
 To set up authentication and invite others to join your organization, check out the Quick Start [directions](/installing-pixie/install-guides/self-hosted-pixie/#1.-deploy-pixie-cloud-authentication-using-kratos-hydra).
 
-To read about how we designed our open source authentication flow, check out the [blog post](https://blog.px.dev/open-source-auth/ossauth/).
+To read about how we designed our open source authentication flow, check out the [blog post](https://blog.px.dev/open-source-auth/).
 
 ## Enabling Auth0