Update readme

Author: nekudo

README.md

@@ -1,2 +1,59 @@
-# munin-node
-Munin node with some basic plugins written in PHP.
+<p align="center">
+    <img src="https://bloatless.org/img/logo.svg" width="60px" height="80px">
+</p>
+
+<h1 align="center">Bloatless Munin Node</h1>
+
+<p align="center">Bloatless Munin Node is a simple port of munin-node and some basic plugins to PHP.</p>
+
+## Features
+
+This application provides a basic [munin-node](http://munin-monitoring.org/) supporting the following commands:
+
+* list
+* fetch
+* config
+* version
+
+It includes the following plugins by default:
+
+* Cpu (Cpu usage)
+* Df (Disc usage)
+* If_ (Network interface traffic)
+* Load (Load average)
+* Memory (Memory usage)
+* Uptime
+
+All plugins are ports from the original munin-node versions to PHP. Additional plugins can be added easily.
+
+## Documentation
+
+### Requirements
+
+* PHP >= 7.2
+* Linux operating system
+* Read access to system files like `/proc/stat` or `/proc/loadavg`
+
+### Installation
+
+1. Clone/Download this repository to your server.
+2. Run `php munin.php`  from the munin-node root folder.
+
+### Adjusting configuration
+
+In case you need to adjust the configuration copy the `config/config.default.php` file to
+`config/config.php` and adjust it to your requirements. Then kill and restart the munin.php process.
+
+### Additional notes
+
+This application is not meant to be a replacement of the original [munin](http://munin-monitoring.org/). Whenever
+possible you should use the original munin software which offers much more plugins and is tested on thousands of
+machines. 
+
+Nevertheless it is sometimes useful to have a munin-node implemented in PHP. For example when you have
+some kind of managed sever where you can not install additional software - but can run PHP scripts. In those
+cases it might be a good possibility to fetch some basic statistics from those machines.  
+
+## License
+
+The MIT License