Docs for new metrics (shutdown, qcmp, etc) #1933

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	# Copyright 2021 Google LLC
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	# you may not use this file except in compliance with the License.
	# You may obtain a copy of the License at
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	# http://www.apache.org/licenses/LICENSE-2.0
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	name: labeler
	on:
	- pull_request_target
	jobs:
	labeler:
	runs-on: ubuntu-latest
	name: Label the PR size
	steps:
	- uses: codelytv/pr-size-labeler@v1
	with:
	GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
	xs_max_size: '10'
	s_max_size: '100'
	m_max_size: '500'
	l_max_size: '1000'
	fail_if_xl: 'false'
	message_if_xl: >
	'This PR exceeds the recommended size of 1000 lines.
	Please make sure you are NOT addressing multiple issues with one PR.
	Note this PR might be rejected due to its size.’

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