Improve `LexerErrorKind` and `Loc` documentation #470

	name: CI

	on: [push, pull_request]

	jobs:
	build:
	name: 'Build and test'
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v2

	- name: Get stable toolchain
	uses: actions-rs/toolchain@v1
	with:
	toolchain: stable
	override: true

	- name: Build
	run: cargo build --verbose

	- name: Test
	run: cargo test

	formatting:
	name: 'Check formatting'
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v2

	- name: Get Rust stable toolchain
	uses: actions-rs/toolchain@v1
	with:
	toolchain: stable
	components: rustfmt
	override: true

	- name: Check formatting
	run: cargo fmt --all -- --check

	clippy:
	name: 'Check lints'
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v2

	- name: Get Rust stable toolchain
	uses: actions-rs/toolchain@v1
	with:
	toolchain: stable
	override: true

	- name: Check lints
	run: cargo clippy --all-targets --all

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