Add a catch for Nilable ProcNotations. Fixes #90 (#91) #23

	name: Deploy docs

	on:
	push:
	branches: [main]

	jobs:
	deploy:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v3
	with:
	persist-credentials: false
	- uses: crystal-lang/install-crystal@v1
	with:
	crystal: latest
	- name: "Install shards"
	run: shards install --skip-postinstall --skip-executables
	- name: "Generate docs"
	run: crystal docs
	- name: Deploy to GitHub Pages
	uses: peaceiris/actions-gh-pages@v3
	with:
	github_token: ${{ secrets.GITHUB_TOKEN }}
	publish_dir: ./docs

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