Usage text typo and README.md minor fixes

README.md

@@ -4,7 +4,7 @@ This tool is what you need, just run `pve-hosts >> /etc/hosts` to get every PVE
 ## Build status
 Master branch: [![Build Status](https://dev.azure.com/niasar/pve-hosts/_apis/build/status/niasar.pve-hosts?branchName=master)](https://dev.azure.com/niasar/pve-hosts/_build/latest?definitionId=2&branchName=master)
 
-Latest release binary: [![Get latest binary](https://img.shields.io/badge/Version-1.2.1-green.svg)](https://github.com/niasar/pve-hosts/releases/latest/download/pve-hosts)
+Latest release binary: [![Get latest binary](https://img.shields.io/badge/Version-1.2.3-green.svg)](https://github.com/niasar/pve-hosts/releases/latest/download/pve-hosts)
 
 ## Usage
 

main.go

@@ -14,10 +14,13 @@ import (
 )
 
 func main() {
+	//Setup flags
 	iface := flag.String("iface", "vmbr0", "network interface")
-	format := flag.String("format", "hosts", "output in ansible hosts definition format")
+	format := flag.String("format", "hosts", "output format (ansible or hosts)")
 	flag.Parse()
+	// Check is -output flag is acceptable
 	checkFormat(*format)
+	//Checking is pve cluster available (currently relying on /etc/pve/corosync.conf)
 	detectPveCluster()
 	fmt.Fprintln(os.Stderr, "Gathering info about cluster nodes...")
 	list := getNodeNamelist()