move from Travis to Github Actions

.travis.yml

@@ -1,26 +0,0 @@
-language: php
-
-sudo: false
-
-php:
-  - 7.4
-
-matrix:
-  fast_finish: true
-
-cache:
-  directories:
-    - $HOME/.composer/cache
-
-before_install:
-  - composer self-update
-  - composer validate
-
-install:
-  - composer install --prefer-dist --no-interaction
-
-script:
-  - vendor/bin/phpunit
-  - vendor/bin/phpcs .
-  - vendor/bin/psalm --show-info=false
-  - ./check-refs-readmes

README.md

@@ -1,6 +1,6 @@
 # DesignPatternsPHP
 
-[![Build Status](https://travis-ci.org/domnikl/DesignPatternsPHP.svg?branch=master)](https://travis-ci.org/domnikl/DesignPatternsPHP)
+[![Build Status](https://github.com/domnikl/DesignPatternsPHP/workflows/CI/badge.svg)](https://github.com/domnikl/DesignPatternsPHP/actions)
 [![Documentation Status](https://readthedocs.org/projects/designpatternsphp/badge/?version=latest)](https://readthedocs.org/projects/designpatternsphp/?badge=latest)
 [![Donate](https://img.shields.io/badge/donate-paypal-blue.svg?style=flat-square)](https://paypal.me/DominikLiebler)
 

README.rst

@@ -4,8 +4,8 @@
 DesignPatternsPHP
 =================
 
-.. image:: https://travis-ci.org/domnikl/DesignPatternsPHP.svg?branch=master
-   :target: https://travis-ci.org/domnikl/DesignPatternsPHP
+.. image:: https://github.com/domnikl/DesignPatternsPHP/workflows/CI/badge.svg
+   :target: https://github.com/domnikl/DesignPatternsPHP/actions
    :alt: Build Status
 
 .. image:: https://readthedocs.org/projects/designpatternsphp/badge/?version=latest