Update readme.md #28

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

	name: CI

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

	# 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:
	runs-on: ubuntu-latest

	steps:
	- uses: actions/checkout@v2
	- name: Set up JDK 1.13
	uses: actions/setup-java@v1
	with:
	java-version: 1.13

	- name: Cache Gradle packages
	uses: actions/cache@v1
	with:
	path: ~/.gradle/caches
	key: ${{ runner.os }}-gradle-${{ hashFiles('*/.gradle') }}
	restore-keys: ${{ runner.os }}-gradle

	- name: Build with Gradle
	run: ./gradlew build

	- uses: actions/upload-artifact@v1
	with:
	name: Package
	path: build/libs

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