[COMPLIANCE] Add Copyright and License Headers

Author: hashicorp-copywrite[bot]

.web-docs/metadata.hcl

@@ -1,3 +1,6 @@
+# Copyright (c) HashiCorp, Inc.
+# SPDX-License-Identifier: MPL-2.0
+
 # For full specification on the configuration of this file visit:
 # https://github.com/hashicorp/integration-template#metadata-configuration
 integration {

.web-docs/scripts/compile-to-webdocs.sh

@@ -1,4 +1,7 @@
 #!/usr/bin/env bash
+# Copyright (c) HashiCorp, Inc.
+# SPDX-License-Identifier: MPL-2.0
+
 
 # Converts the folder name that the component documentation file
 # is stored in into the integration slug of the component.