diff --git a/.gitignore b/.gitignore
index b4a891d..01bf739 100644
--- a/.gitignore
+++ b/.gitignore
@@ -3,3 +3,4 @@
 /coverage.clover
 /vendor
 /composer.lock
+.phpunit.result.cache
diff --git a/.travis.yml b/.travis.yml
index 4421723..5a1866f 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -2,22 +2,29 @@ language: php
 
 sudo: true
 
+env:
+  global:
+    - CC_TEST_REPORTER_ID=06e760639839ebb404cc782646f5867ac7da7ce0e0e914978f6988812415f0d3
+
 php:
   - 7.2
   - 7.3
 
 before_install:
+  - curl -L https://codeclimate.com/downloads/test-reporter/test-reporter-latest-linux-amd64 > ./cc-test-reporter
+  - chmod +x ./cc-test-reporter
+  - ./cc-test-reporter before-build
   - composer self-update
 
 install:
-  - composer update
+  - composer install --no-interaction --no-progress --no-suggest
 
 script:
-  - vendor/bin/phpunit
+  - vendor/bin/phpunit --coverage-clover=clover.xml
+  - vendor/bin/phpcs --standard=PSR12 --warning-severity=0 src
 
 after_script:
-  - wget https://scrutinizer-ci.com/ocular.phar
-  - php ocular.phar code-coverage:upload --format=php-clover coverage.clover
+  - ./cc-test-reporter after-build --exit-code $TRAVIS_TEST_RESULT
 
 cache:
   directories:
diff --git a/README.md b/README.md
index 58c33b4..1741325 100644
--- a/README.md
+++ b/README.md
@@ -1,2 +1,28 @@
-# Enum [![Build Status](https://travis-ci.org/fat-code/enum.svg?branch=master)](https://travis-ci.org/fat-code/enum) [![Scrutinizer Code Quality](https://scrutinizer-ci.com/g/fat-code/enum/badges/quality-score.png?b=master)](https://scrutinizer-ci.com/g/fat-code/enum/?branch=master) [![Code Coverage](https://scrutinizer-ci.com/g/fat-code/enum/badges/coverage.png?b=master)](https://scrutinizer-ci.com/g/fat-code/enum/?branch=master)
+# Enum [![Build Status](https://travis-ci.org/fat-code/enum.svg?branch=master)](https://travis-ci.org/fatcode/enum) [![Maintainability](https://api.codeclimate.com/v1/badges/a3ad92200e13a6219750/maintainability)](https://codeclimate.com/github/fatcode/enum/maintainability) [![Test Coverage](https://api.codeclimate.com/v1/badges/a3ad92200e13a6219750/test_coverage)](https://codeclimate.com/github/fatcode/enum/test_coverage)
 Enumeration library for connoisseurs.
+
+## Installation
+`composer install fatcode/enum`
+
+## Enum declaration
+```php
+<?php
+
+use  FatCode\Enum;
+
+class Colors extends Enum
+{
+    public const RED = 'red';
+    public const GREEN = 'green';
+    protected const INVISIBLE_COLOR = 'invisible_color';
+}
+```
+
+## Enum usage
+```php
+<?php
+// $red is instance of Enum with value 'red'
+$red = Colors::RED();
+$red->getValue(); // "red"
+$red->getKey();// "RED"
+```
diff --git a/composer.json b/composer.json
index 3dc4026..1c96d43 100644
--- a/composer.json
+++ b/composer.json
@@ -1,7 +1,6 @@
 {
   "name": "fatcode/enum",
   "description": "Enumeration library for connoisseurs.",
-  "version": "dev-master",
   "keywords": [
     "enum",
     "php"
@@ -16,8 +15,14 @@
   "require": {
     "php": ">=7.2.0"
   },
+  "scripts": {
+    "phpunit": "vendor/bin/phpunit --coverage-text",
+    "phpcs": "vendor/bin/phpcs --standard=PSR12 --warning-severity=0 src",
+    "phpcsf": "vendor/bin/phpcbf --standard=PSR12 --warning-severity=0 src"
+  },
   "require-dev": {
-    "phpunit/phpunit": ">=8.0"
+    "phpunit/phpunit": ">=8.0",
+    "squizlabs/php_codesniffer": ">=3.0"
   },
   "autoload": {
     "psr-4": {