Add `write` permission to the action #111

	name: "size"
	on:
	pull_request:
	branches:
	- master
	jobs:
	size:
	runs-on: ubuntu-latest
	env:
	CI_JOB_NUMBER: 1
	steps:
	- uses: actions/checkout@v1
	- run: \|
	git fetch --no-tags --prune --depth=1 origin +refs/heads/:refs/remotes/origin/
	- uses: ./
	with:
	github_token: ${{ secrets.GITHUB_TOKEN }}

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