README updated and TODO added

Author: PBXg33k

CHANGELOG.md

@@ -3,9 +3,14 @@ All notable changes to this project will be documented in this file.
 This project adheres to [Semantic Versioning](http://semver.org/).
 
 ## [Unreleased]
+### Added
+- Spotify
+	- Album
 ### Changed
-- _internal_ Optimalizations
+- Dependencies
 - _internal_ Unit tests
+### Removed
+- **PHP 5.5 support**
 
 ## [0.0.2] - 2016-12-01
 ### Added

README.md

@@ -7,6 +7,7 @@ This PHP library enables you to combine multiple music related API Services to l
 ## Requirements ##
 In order to use this library your environment MUST meet the following criteria:
 * PHP 5.6 (or later)
+	* curl extension
 
 
 ## Installation ##
@@ -92,17 +93,21 @@ music_info:
 
 ## Services ##
 
-|   | Version | General | Track | Artist | Album | Comments |
-|---|:-------:|:-------:|:-----:|:------:|:-----:|:--------:|
-|Spotify | 0.1 | :white_check_mark: | :white_check_mark: | :white_check_mark: | :heavy_multiplication_x: ||
-|VocaDB  | 0.1 | :white_check_mark: | :heavy_multiplication_x: | :white_check_mark: | :heavy_multiplication_x: ||
-|MusicBrains | 0.1 | :heavy_multiplication_x: | :heavy_multiplication_x: | :heavy_multiplication_x: | :heavy_multiplication_x: ||
-|~~Echonest~~   | :heavy_multiplication_x: | :heavy_multiplication_x: | :heavy_multiplication_x: | :heavy_multiplication_x: | :heavy_multiplication_x: | Service cancelled in favor of Spotify [[1]](http://developer.echonest.com/docs/v4) |
+|             | Version                  | General                  | Track                    | Artist                   | Album                    | Comments |
+|---          |:-------:                 |:-------:                 |:-----:                   |:------:                  |:-----:                   |:--------:|
+|Spotify      | 0.1                      | :white_check_mark:       | :white_check_mark:       | :white_check_mark:       | :heavy_multiplication_x: ||
+|VocaDB       | 0.1                      | :white_check_mark:       | :heavy_multiplication_x: | :white_check_mark:       | :heavy_multiplication_x: ||
+|MusicBrains  | 0.1                      | :heavy_multiplication_x: | :heavy_multiplication_x: | :heavy_multiplication_x: | :heavy_multiplication_x: ||
+|Discogs      | N/A                      | :heavy_multiplication_x: | :heavy_multiplication_x: | :heavy_multiplication_x: | :heavy_multiplication_x: ||
+|~~Echonest~~ | :heavy_multiplication_x: | :heavy_multiplication_x: | :heavy_multiplication_x: | :heavy_multiplication_x: | :heavy_multiplication_x: | Service cancelled in favor of Spotify [[1]](http://developer.echonest.com/docs/v4) |
 
 ## Changelog
 
 Please see [CHANGELOG.md](CHANGELOG.md)
 
+## Todo
+
+Please see [TODO.md](TODO.md)
 
 ## License
 

TODO.md

@@ -0,0 +1,12 @@
+# To-Do
+
+This document lists all planned features for future releases.
+Please note that this document does not guarantee the addition of these features.
+**The list is in no particular order**
+
+* Suggest corrections
+* Cache mechanism
+* Job system
+	* Prevent ban from API exhaustion (rate limit exceeding)
+* More modular system
+	* Allow adding support for extra services without adding it to this project/codebase