Update docs.

website/docs/r/generic_secret.html.md

@@ -42,18 +42,22 @@ EOT
 
 The following arguments are supported:
 
-* `path` - (Required) The full logical path at which to write the given
-data. To write data into the "generic" secret backend mounted in Vault by
-default, this should be prefixed with `secret/`. Writing to other backends
-with this resource is possible; consult each backend's documentation to
-see which endpoints support the `PUT` and `DELETE` methods.
-
-* `data_json` - (Required) String containing a JSON-encoded object that
-will be written as the secret data at the given path.
-
-* `allow_read` - (Optional) True/false. Set this to true if your vault
-authentication is able to read the data, this allows the resource to be
-compared and updated. Defaults to false.
+* `path` - (Required) The full logical path at which to write the given data.
+  To write data into the "generic" secret backend mounted in Vault by default,
+  this should be prefixed with `secret/`. Writing to other backends with this
+  resource is possible; consult each backend's documentation to see which
+  endpoints support the `PUT` and `DELETE` methods.
+
+* `data_json` - (Required) String containing a JSON-encoded object that will be
+  written as the secret data at the given path.
+
+* `allow_read` - (Optional, Deprecated) True/false. Set this to true if your
+  vault authentication is able to read the data, this allows the resource to be
+  compared and updated. Defaults to false.
+
+* `disable_read` - (Optional) True/false. Set this to true if your vault
+  authentication is not able to read the data. Setting this to `true` will
+  break drift detection. Defaults to false.
 
 ## Required Vault Capabilities