Fix handbook link to TW assignments

doc/administration/application_settings_cache.md

doc/administration/audit_event_streaming.md

doc/administration/audit_events.md

doc/administration/audit_reports.md

doc/administration/auditor_users.md

doc/administration/auth/atlassian.md

doc/administration/auth/authentiq.md

doc/administration/auth/cognito.md

doc/administration/auth/crowd.md

doc/administration/auth/index.md

doc/administration/auth/jwt.md

doc/administration/auth/ldap/google_secure_ldap.md

doc/administration/auth/ldap/index.md

doc/administration/auth/ldap/ldap-troubleshooting.md

doc/administration/auth/ldap/ldap_synchronization.md

doc/administration/auth/oidc.md

doc/administration/auth/smartcard.md

doc/administration/cicd.md

doc/administration/clusters/kas.md

doc/administration/compliance.md