push changelog and update readme

Author: lutdev

CHANGELOG.md

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+# Changelog
+All notable changes to this project will be documented in this file.
+
+The format is based on [Keep a Changelog](http://keepachangelog.com/en/1.0.0/)
+and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.html).
+
+## [Unreleased]
+
+## [2.1.0] - 2017-05-05
+### Added
+- Framework agnostic support
+- Update Readme.MD
+- Support PHP 7.1
+### Changed
+- Rename repository
+- Change properties and methods visibility
+- Rename methods:
+    - `setHeaderLinks` to `headerLinks`
+    - `arrayTableContents` to `tableContents`
+    - `str_replace_first` to `replaceFirstOccurrence`
+### Removed
+- Support PHP 5.6
+
+## [2.0.0] - 2017-04-08
+### Changed
+- Rename repository
+- Change properties and methods visibility
+- Rename methods:
+    - `setHeaderLinks` to `headerLinks`
+    - `arrayTableContents` to `tableContents`
+    - `str_replace_first` to `replaceFirstOccurrence`
+
+## [1.0.0] - 2017-03-30
+### Added
+- The ability to generate table of contents
+- Create README.MD 

README.MD

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 [![License](http://img.shields.io/:license-mit-blue.svg)](http://doge.mit-license.org)
 [![GitHub version](https://badge.fury.io/gh/lutdev%2Ftable-contents.svg)](https://badge.fury.io/gh/lutdev%2Ftable-contents)
+[![Build Status](https://travis-ci.org/lutdev/table-contents.svg?branch=master)](https://travis-ci.org/lutdev/table-contents)
 
 ## About
 Package for generating table of contents for the text.