ci: disable travis build

resolve #88

.travis.yml

@@ -1,25 +0,0 @@
-language: python
-python:
-  - '3.6'
-before_install:
-  - eval "$(gimme stable)"
-install:
-  - go get github.com/github/hub && hub --version
-  - pip install -r requirements.txt -r dev-requirements.txt
-  - curl -L https://codeclimate.com/downloads/test-reporter/test-reporter-latest-linux-amd64 > ./cc-test-reporter
-  - chmod +x ./cc-test-reporter
-cache:
-  - pip
-before_script:
-  - git config credential.helper "store --file=.git/credentials"
-  - echo "https://${GITHUB_TOKEN}:@github.com" > .git/credentials
-  - git checkout master
-  - ./cc-test-reporter before-build
-script:
-  - coverage run -m pytest && coverage run -a ./update.py --release
-after_script:
-  - coverage xml && coverage report
-  - ./cc-test-reporter after-build --exit-code $TRAVIS_TEST_RESULT
-branches:
-  only:
-    - master

README.md

@@ -1,6 +1,11 @@
 # holiday-cn
 
-[![Build Status](https://travis-ci.com/NateScarlet/holiday-cn.svg?branch=master)](https://travis-ci.com/NateScarlet/holiday-cn) [![Release](https://img.shields.io/github/release/NateScarlet/holiday-cn.svg)](https://github.com/NateScarlet/holiday-cn/releases/latest) [![CalVer](https://img.shields.io/badge/calver-YYYY.0M.0D-22bfda.svg)](http://calver.org) [![Maintainability](https://api.codeclimate.com/v1/badges/c8e9d9c51bd2d858c577/maintainability)](https://codeclimate.com/github/NateScarlet/holiday-cn/maintainability) [![Test Coverage](https://api.codeclimate.com/v1/badges/c8e9d9c51bd2d858c577/test_coverage)](https://codeclimate.com/github/NateScarlet/holiday-cn/test_coverage) ![Maintenance](https://img.shields.io/maintenance/yes/2020.svg)
+[![Build Status](https://github.com/NateScarlet/holiday-cn/workflows/CI/badge.svg)](https://github.com/NateScarlet/holiday-cn/actions)
+[![Release](https://img.shields.io/github/release/NateScarlet/holiday-cn.svg)](https://github.com/NateScarlet/holiday-cn/releases/latest)
+[![CalVer](https://img.shields.io/badge/calver-YYYY.0M.0D-22bfda.svg)](http://calver.org)
+[![Maintainability](https://api.codeclimate.com/v1/badges/c8e9d9c51bd2d858c577/maintainability)](https://codeclimate.com/github/NateScarlet/holiday-cn/maintainability)
+[![Test Coverage](https://api.codeclimate.com/v1/badges/c8e9d9c51bd2d858c577/test_coverage)](https://codeclimate.com/github/NateScarlet/holiday-cn/test_coverage)
+![Maintenance](https://img.shields.io/maintenance/yes/2020.svg)
 
 中国法定节假日数据 自动每日抓取国务院公告