Fix variable name typo

docs/configuring-playbook-dynamic-dns.md

@@ -9,7 +9,7 @@ google domains, this process is described [here](https://support.google.com/doma
 After you've gotten the proper credentials you can add the following config to your inventory/host_vars/matrix.DOMAIN/vars.yml:
 
 ```
-matrix_dyanmic_dns_enabled: true
+matrix_dynamic_dns_enabled: true
 matrix_dynamic_dns_domain_configurations: |
   {{
     [{'provider': 'domains.google.com', 'protocol': 'dyndn2', 'username': 'XXXXXXXXXXXXXXXX', 'password': 'XXXXXXXXXXXXXXXX', 'domain': matrix_domain}]

group_vars/matrix_servers

@@ -626,7 +626,7 @@ matrix_dimension_homeserver_federationUrl: "http://matrix-synapse:{{ 8048 if mat
 #
 ######################################################################
 
-matrix_dyanmic_dns_enabled: false
+matrix_dynamic_dns_enabled: false
 matrix_dynamic_dns_domain_configurations: []
 
 ######################################################################