add changelog

Author: amejiarosario

package.json

@@ -1,6 +1,6 @@
 {
   "name": "dsa.js",
-  "version": "1.0.0",
+  "version": "1.1.0",
   "description": "Data Structures & Algorithms in JS",
   "main": "./src/index.js",
   "dependencies": {

src/changelog.md

@@ -0,0 +1,40 @@
+# Changelog
+All notable changes to this project will be documented in this file.
+
+The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
+and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
+
+## [Unreleased]
+### Added
+-
+### Changed
+-
+### Removed
+-
+
+## [1.1.0] - 2019-03-29
+### Added
+- README.md added because NPM packages doesn't read README.adoc
+- Public API to use the package `dsa.js`
+- This changelog
+
+### Changed
+-
+### Removed
+-
+
+## [1.0.0] - 2019-03-29
+### Added
+- Started the project
+- Book released
+- npm package published
+
+### Changed
+-
+### Removed
+-
+
+
+[Unreleased]: https://github.com/amejiarosario/dsa.js/compare/1.1.0...HEAD
+[1.1.0]: https://github.com/amejiarosario/dsa.js/compare/1.0.0...1.1.0
+[1.0.0]: https://github.com/amejiarosario/dsa.js/releases/tag/1.0.0