Update concept-certificate-based-authentication.md

Identified a typo - should be picker instead of picket. Thanks!

Author: cgill

articles/active-directory/authentication/concept-certificate-based-authentication.md

@@ -66,7 +66,7 @@ The following scenarios are supported:
 
 The following scenarios aren't supported:
 
-- Certificate Authority hints aren't supported, so the list of certificates that appears for users in the certificate picket UI isn't scoped.
+- Certificate Authority hints aren't supported, so the list of certificates that appears for users in the certificate picker UI isn't scoped.
 - Only one CRL Distribution Point (CDP) for a trusted CA is supported.
 - The CDP can be only HTTP URLs. We don't support Online Certificate Status Protocol (OCSP), or Lightweight Directory Access Protocol (LDAP) URLs.
 - Configuring other certificate-to-user account bindings, such as using the **Subject**, **Subject + Issuer** or **Issuer + Serial Number**, aren’t available in this release.