Add screenshot and docs #5

	name: flutter_kanjivg - Checks
	on:
	workflow_dispatch:
	pull_request:
	paths:
	- "flutter_kanjivg/**"
	push:
	paths:
	- "flutter_kanjivg/**"
	branches:
	- master

	jobs:
	build:
	timeout-minutes: 5
	name: Flutter checks
	runs-on: ubuntu-latest
	defaults:
	run:
	working-directory: "./flutter_kanjivg"
	steps:
	- name: Checkout
	uses: actions/checkout@v4

	- name: Install Flutter
	uses: subosito/flutter-action@v2
	with:
	cache: true
	channel: "stable"

	- name: Print version
	run: flutter --version

	- name: Get dependencies
	run: flutter pub get

	- name: Check formatting
	run: dart format . --set-exit-if-changed

	- name: Run analyzer
	run: flutter analyze

	- name: Run tests
	run: flutter test --coverage .

	- name: Generate .lcov file
	run: \|
	dart pub global activate coverage
	format_coverage --lcov --in=coverage --out=coverage.lcov --packages=.dart_tool/package_config.json --report-on=lib

	- name: Upload coverage
	run: curl -s https://codecov.io/bash \| bash

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