docs(README): update installation instructions for various distributions

cmd/root.go

@@ -7,6 +7,8 @@ import (
 	"github.com/spf13/cobra"
 )
 
+var version = "dev"
+
 var configPath string
 
 var rootCmd = &cobra.Command{
@@ -16,7 +18,7 @@ var rootCmd = &cobra.Command{
 
 It discovers running containers, stores them in a config file,
 and generates + manages systemd .service units for each one.`,
-	Version: "0.1.0",
+	Version: version,
 }
 
 func Execute() {