feat: add Fibonacci Numbers (#63) #20

	---
	name: check_code_format

	# yamllint disable-line rule:truthy
	on:
	workflow_dispatch:
	push:
	branches:
	- main
	pull_request:

	jobs:
	check_format_code:
	name: check format code
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v4
	with:
	fetch-depth: 0

	- uses: jiro4989/setup-nim-action@v1

	- name: Format code
	run: \|
	git clean -f -x -d
	nim prettyfy

	- name: Fail if needs reformatting
	run: \|
	if [[ $(git status --porcelain) ]]; then
	echo "please reformat/prettyfy these files:"
	git status --porcelain=v1
	exit 1
	fi
	...

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