Add extra help line for delete command #81

	name: Nix development cache

	on:
	# Build on every pull request (and new PR commit)
	pull_request:
	# Build on new pushes to trunk (E.g. Merge commits)
	# Without the branch filter, each commit on a branch with a PR is triggered twice.
	# See: https://github.community/t/how-to-trigger-an-action-on-push-or-pull-request-but-not-both/16662
	push:
	branches:
	- trunk

	jobs:
	nix:
	name: ${{ matrix.os }}
	runs-on: ${{ matrix.os }}
	strategy:
	# Run each build to completion, regardless of if any have failed
	fail-fast: false
	matrix:
	os:
	- ubuntu-20.04
	steps:
	- uses: actions/checkout@v3
	- uses: cachix/install-nix-action@v22
	with:
	extra_nix_config: \|
	extra-trusted-public-keys = hydra.iohk.io:f/Ea+s+dFdN+3Y/G+FDgSq+a5NEWhJGzdjvKNGv0/EQ=
	extra-substituters = https://cache.iog.io
	- uses: cachix/cachix-action@v12
	with:
	name: unison
	authToken: '${{ secrets.CACHIX_AUTH_TOKEN }}'
	- name: build all packages and development shells
	run: nix -L build --accept-flake-config --no-link --keep-going '.#all'

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