docs/provider: Attribute headers and byline fixes (A-C resources)

[bflad]

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Reference: #15842

Previously:

	* website/docs/r/api_gateway_base_path_mapping.html.markdown: error checking file contents: missing attributes section: ## Attributes Reference
	* website/docs/r/api_gateway_gateway_response.markdown: error checking file contents: missing attributes section: ## Attributes Reference
	* website/docs/r/api_gateway_integration.html.markdown: error checking file contents: missing attributes section: ## Attributes Reference
	* website/docs/r/api_gateway_integration_response.html.markdown: error checking file contents: missing attributes section: ## Attributes Reference
	* website/docs/r/api_gateway_method.html.markdown: error checking file contents: missing attributes section: ## Attributes Reference
	* website/docs/r/api_gateway_method_response.html.markdown: error checking file contents: missing attributes section: ## Attributes Reference
	* website/docs/r/api_gateway_method_settings.html.markdown: error checking file contents: missing attributes section: ## Attributes Reference
	* website/docs/r/appautoscaling_target.html.markdown: error checking file contents: missing attributes section: ## Attributes Reference
	* website/docs/r/autoscaling_attachment.html.markdown: error checking file contents: missing attributes section: ## Attributes Reference
	* website/docs/r/autoscaling_lifecycle_hook.html.markdown: error checking file contents: missing attributes section: ## Attributes Reference
	* website/docs/r/cloudwatch_event_target.html.markdown: error checking file contents: missing attributes section: ## Attributes Reference
	* website/docs/r/cloudwatch_log_destination_policy.html.markdown: error checking file contents: missing attributes section: ## Attributes Reference
	* website/docs/r/cloudwatch_log_subscription_filter.html.markdown: error checking file contents: attributes section byline (No extra attributes are exported.) should be: "In addition to all arguments above, the following attributes are exported:" or "No additional attributes are exported."
	* website/docs/r/codebuild_project.html.markdown: error checking file contents: attributes section byline (In addition to the arguments above, the following attributes are exported:) should be: "In addition to all arguments above, the following attributes are exported:" or "No additional attributes are exported."
	* website/docs/r/codecommit_trigger.html.markdown: error checking file contents: missing attributes section: ## Attributes Reference
	* website/docs/r/cognito_identity_provider.html.markdown: error checking file contents: missing attributes section: ## Attributes Reference
	* website/docs/r/cognito_user_group.html.markdown: error checking file contents: missing attributes section: ## Attributes Reference
	* website/docs/r/config_configuration_recorder_status.html.markdown: error checking file contents: missing attributes section: ## Attributes Reference
	* website/docs/r/config_remediation_configuration.html.markdown: error checking file contents: missing attributes section: ## Attributes Reference
	* website/docs/r/cur_report_definition.html.markdown: error checking file contents: missing attributes section: ## Attributes Reference

Output from acceptance testing: N/A (documentation)

[breathingdust]

LGTM 🚀 🚀

[ghost]

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