Improve error message by following the Notation CLI error message handling guidance #265

	# Copyright The Notary Project Authors.
	# Licensed under the Apache License, Version 2.0 (the "License");
	# you may not use this file except in compliance with the License.
	# You may obtain a copy of the License at
	#
	# http://www.apache.org/licenses/LICENSE-2.0
	#
	# Unless required by applicable law or agreed to in writing, software
	# distributed under the License is distributed on an "AS IS" BASIS,
	# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
	# See the License for the specific language governing permissions and
	# limitations under the License.

	on:
	issues:
	types:
	- opened

	permissions:
	contents: read

	jobs:
	add-to-project:
	name: Add issue to project
	runs-on: ubuntu-latest
	steps:
	- uses: actions/add-to-project@9bfe908f2eaa7ba10340b31e314148fcfe6a2458 # v1.0.1
	with:
	project-url: https://github.com/orgs/notaryproject/projects/10
	github-token: ${{ secrets.ADD_TO_PROJECT_PAT }}

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