refactor: fix typo in database primary key patch

Co-authored-by: Braden MacDonald <[email protected]>

terraform/modules/digitalocean/database/README.md

@@ -21,7 +21,7 @@ No modules.
 | [digitalocean_database_db.databases](https://registry.terraform.io/providers/digitalocean/digitalocean/latest/docs/resources/database_db) | resource |
 | [digitalocean_database_firewall.database_cluster_firewall](https://registry.terraform.io/providers/digitalocean/digitalocean/latest/docs/resources/database_firewall) | resource |
 | [digitalocean_database_user.users](https://registry.terraform.io/providers/digitalocean/digitalocean/latest/docs/resources/database_user) | resource |
-| [null_resource.no_primay_key_patch_database_cluster](https://registry.terraform.io/providers/hashicorp/null/latest/docs/resources/resource) | resource |
+| [null_resource.no_primary_key_patch_database_cluster](https://registry.terraform.io/providers/hashicorp/null/latest/docs/resources/resource) | resource |
 | [digitalocean_vpc.vpc](https://registry.terraform.io/providers/digitalocean/digitalocean/latest/docs/data-sources/vpc) | data source |
 
 ## Inputs