Updated README

Added additional info on installation and usage

README.md

@@ -1,6 +1,31 @@
-# Osu-background-changer
+# OBM (Osu!-background-manager)
 
-## This program will help you with replacement of Osu!`s beatmap backgrounds
+## This utility will help you with replacement of Osu!`s beatmap backgrounds
 
 **Use at your own risk !**
 There is no way to return removed original backgrounds unless you delete all beatmaps and reimport newly downloaded versions of them again.  
+
+## Installation 
+
+### From source
+1. git clone [https://github.com/Unbewohnte/OBM.git](https://github.com/Unbewohnte/OBM.git) or download and unzip the archive
+2. cd into the directory
+3. go build
+
+### From release
+1. go to the [releases](https://github.com/Unbewohnte/OBM/releases) page
+2. choose your OS and download the archive
+3. cd to the location of the downloaded version
+4. unzip (7z x **archive_name**) - for 7z archives 
+
+## Usage
+
+### First run 
+1. The program will generate a settings.json file if it is not already in the directory when you run it
+2. Paste your Osu! filepath in the "pathToOsu" field
+3. Paste the filepath of the image in the "pathToimage" field. **ALL** beatmap`s backgrounds will be replaced with this image 
+4. Additionally you can disable the "createBlackBackgoundImage" by replacing **true** with **false** or change the number of workers
+5. Run the program once again
+
+### After
+1. Just run the utility again. If it found the settings file - it will perform the magic