Remove placeholder page from initial docs outline

Author: RebeccaTamachiro

src/content/docs/secrets-store/manage-secrets/index.mdx

@@ -10,7 +10,7 @@ description: Learn about different operations to manage your secrets in Cloudfla
 
 Secrets can be API tokens, public/private keys, authorization keys, passwords, or even code variables. The only limitation is that a secret must be a string within 1024 bytes.
 
-Once a secret is added to the Secrets Store, it can no longer be decrypted or accessed via API or on the Dashboard, only the service associated with a given secret will be able to access it.
+Once a secret is added to the Secrets Store, it can no longer be decrypted or accessed via API or on the dashboard, only the service associated with a given secret will be able to access it.
 
 ## Limits