Fix matrix-synapse-ldap3 docs link in README

Fixes https://github.com/spantaleev/matrix-docker-ansible-deploy/issues/2734

README.md

@@ -79,7 +79,7 @@ Extend and modify how users are authenticated on your homeserver.
 | ---- | -------- | ----------- | ------------- |
 | [matrix-synapse-rest-auth](https://github.com/ma1uta/matrix-synapse-rest-password-provider) (advanced) | x | REST authentication password provider module | [Link](docs/configuring-playbook-rest-auth.md) |
 |[matrix-synapse-shared-secret-auth](https://github.com/devture/matrix-synapse-shared-secret-auth) (advanced) | x | Password provider module | [Link](docs/configuring-playbook-shared-secret-auth.md) |
-| [matrix-synapse-ldap3](https://github.com/matrix-org/matrix-synapse-ldap3) (advanced) | x | LDAP Auth password provider module | [Link](configuring-playbook-ldap-auth.md) |
+| [matrix-synapse-ldap3](https://github.com/matrix-org/matrix-synapse-ldap3) (advanced) | x | LDAP Auth password provider module | [Link](docs/configuring-playbook-ldap-auth.md) |
 | [matrix-ldap-registration-proxy](https://gitlab.com/activism.international/matrix_ldap_registration_proxy) (advanced) | x | A proxy that handles Matrix registration requests and forwards them to LDAP. | [Link](docs/configuring-playbook-matrix-ldap-registration-proxy.md) |
 | [matrix-registration](https://github.com/ZerataX/matrix-registration) | x | A simple python application to have a token based matrix registration | [Link](docs/configuring-playbook-matrix-registration.md) |