Correctly apply utf8 default

Adjust readme

Author: nickdnk2

README.md

@@ -2,7 +2,7 @@
 [According to Valve's RCON specification](https://developer.valvesoftware.com/wiki/Source_RCON_Protocol)
 
 ## Install
-This version of rcon-srcds is an ES6 module and requires Node 14+.
+This version of rcon-srcds is an ES Module and requires Node 14+.
 
 ```console
 npm install rcon-srcds --save

src/rcon.ts

@@ -20,7 +20,7 @@ export class RCON {
         this.host = options.host || '127.0.0.1'
         this.port = options.port || 27015
         this.maxPacketSize = options.maxPacketSize || 4096
-        this.encoding = options.encoding || 'ascii'
+        this.encoding = options.encoding || 'utf8'
         this.timeout = options.timeout || 1000
 
         this.authenticated = false