Create an example of using with leptonica's c-api #24

	name: Test

	on:
	push

	env:
	CARGO_TERM_COLOR: always

	jobs:
	default:

	runs-on: ubuntu-latest

	steps:
	- name: Version information
	run: rustc --version; cargo --version
	- name: Install tesseract
	run: sudo apt-get install libleptonica-dev libtesseract-dev clang tesseract-ocr-eng
	- uses: actions/checkout@v2
	- name: Build
	run: cargo build --verbose
	- name: Lint code
	run: cargo clippy
	- name: Run tests
	run: cargo test --verbose
	- name: Check formatting
	run: cargo fmt -- --check

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