* add pretty badge

Author: lpcvoid

README.md

@@ -4,6 +4,8 @@
 
     This lib is under heavy development and not really ready for use yet.
 
+![test-status](https://github.com/lpcvoid/cpp-net-lib/actions/workflows/cmake.yml/badge.svg)
+
 Modern, header-only, compact and cross plattform C++ network/sockets library. 
 Don't mind the crappy name, I suck at naming things.