Update intro

Author: qaisjp

README.md

@@ -4,7 +4,7 @@
 
 *amx* is a software package that allows the execution of unmodified San
 Andreas: Multiplayer 0.3.7 gamemodes, filterscripts and plugins on Multi
-Theft Auto: San Andreas 1.6 and higher servers. It is open source, and [**a prebuilt
+Theft Auto: San Andreas 1.5.8 and higher servers. It is open source, and [**a prebuilt
 binary for Windows is available for testing purposes right now**](https://github.com/multitheftauto/amx/releases).
 
 - [License](#license)