Update README.md

README.md

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-# BNKEditor
+# BNKEditor
+
+A tool to edit the sounds inside an Audiokinetic Wwise SoundBank, without modifying the additional information in the SoundBank.
+
+## Installation
+
+To run this program, you need Java. Check [here](https://java.com/en/download/installed8.jsp) if you already have Java installed.
+
+## Usage
+
+First of course you need to open a SoundBank.
+
+Once you opened one, you are presented with a list of all the sounds inside it. You have the choice to extract singular sounds, extract all sounds at once, or most importantly, replace singular sounds.
+
+The file you intend to replace a sound with will be showed next to the "replace" button. If you have made a mistake, you can cancel the replacement.
+
+Make sure that the file you open for replacement is compatible with the version of Wwise the game you're trying to mod uses.
+
+Once you have made all the changes you want to make, hit "save BNK as ..." and choose a location to save your modified SoundBank.
+
+## Credits
+
+Just about all I know about the BNK format, I know from reading this page: [wiki.xentax.com/index.php/Wwise_SoundBank_(*.bnk)](http://wiki.xentax.com/index.php/Wwise_SoundBank_(*.bnk))