Update README.md

Added details

README.md

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+## Description
 
+This is a Minecraft plug-in to remotely manage your Azuriom money from your players registered on your website.
+Usefull to integrate with game mechanics to reward users with your site's currency for completing tasks or whatever.
+
+## Features
+<ul>
+  <li>View your current balance</li>
+  <li>View other player's balance</li>
+  <li>Add money to player's balance</li>
+  <li>Remove money from player's balance</li>
+  <li>Set money to player's balance</li>
+</ul>
+
+## Commands and permissions
+| Command         | Usage                             | Permission               |
+|-----------------|-----------------------------------|--------------------------|
+| **credits**     | /credits                          | none                     |
+| **creditsadd**  | /creditsadd (playername) (amount) | zibuu.credits.add        |
+| **creditsrem**  | /creditsrem (playername) (amount) | zibuu.credits.remove     |
+| **creditsset**  | /creditsset (playername) (amount) | zibuu.credits.set        |
+| **creditsview** | /creditsview (playername)         | zibuu.credits.viewothers |
+
+## Disclaimer
+This is my first java development project, so expect a messy code and proably weird things.