fixes #3: basic readme added

README.md

@@ -2,4 +2,26 @@
 
 [![CI](https://github.com/bilalcaliskan/syn-flood/workflows/CI/badge.svg?event=push)](https://github.com/bilalcaliskan/syn-flood/actions?query=workflow%3ACI)
 [![Docker pulls](https://img.shields.io/docker/pulls/bilalcaliskan/syn-flood)](https://hub.docker.com/r/bilalcaliskan/syn-flood/)
-[![Go Report Card](https://goreportcard.com/badge/github.com/bilalcaliskan/syn-flood)](https://goreportcard.com/report/github.com/bilalcaliskan/syn-flood)
+[![Go Report Card](https://goreportcard.com/badge/github.com/bilalcaliskan/syn-flood)](https://goreportcard.com/report/github.com/bilalcaliskan/syn-flood)
+
+This project is developed with the objective of learning low level network operations with Golang. It starts a syn flood attack 
+with raw sockets. Do not use it with devil needs.
+
+### Configuration
+syn-flood can be customized with several command line arguments:
+```
+--dstIpStr                  Provide public ip of the destination
+--dstPort                   Provide reachable port of the destination
+--payloadLength             Provide payload length in bytes for each SYN packet
+```
+
+### Download
+
+#### Binary
+Binary can be downloaded from [Releases](https://github.com/bilalcaliskan/syn-flood/releases) page.
+
+#### Docker
+Docker image can be downloaded with below command:
+```shell
+$ docker run bilalcaliskan/syn-flood:latest
+```