Remove unused `.travis.yml` #9

	# This is a basic workflow to help you get started with Actions

	name: Build and Deploy to Github pages

	# Controls when the action will run.
	on:
	# Triggers the workflow on push or pull request events but only for the main branch
	push:
	branches: [main]

	# Allows you to run this workflow manually from the Actions tab
	workflow_dispatch:

	# A workflow run is made up of one or more jobs that can run sequentially or in parallel
	jobs:
	# This workflow contains a single job called "build"
	build:
	# The type of runner that the job will run on
	runs-on: ubuntu-latest

	# Steps represent a sequence of tasks that will be executed as part of the job
	steps:
	# Checks-out your repository under $GITHUB_WORKSPACE, so your job can access it
	- name: Checkout
	uses: actions/checkout@v2

	- name: Setup Node.js environment
	uses: actions/[email protected]
	with:
	node-version: 14

	- name: Setup CI env
	run: npm ci

	- name: Check Prettier
	run: npm run check-pretty

	- name: Export Next.js
	run: npm run dev & (npm run build && npm run export)

	- name: Touch .nojekyll
	run: touch out/.nojekyll

	- name: Deploy with GitHub Pages
	uses: peaceiris/[email protected]
	with:
	publish_dir: out/
	github_token: ${{ secrets.ICPC_SINCHON_API_KEY }}

Provide feedback