readme更新

Author: harakeishi

README.md

@@ -58,6 +58,39 @@ func main() {
 	fmt.Println(gscp.Parse(s))
 }
 ```
+
+Obtains information on the specified host and the specified options.
+
+```go
+package main
+
+import (
+	"fmt"
+	"github.com/harakeishi/gscp"
+)
+
+func main() {
+	// Specify path
+	path := gscp.Path("./testData/test1_config")
+	// Load config.
+	s, _ := gscp.LoadConfig(path)
+	// Parse config.
+	hosts, _ := gscp.Parse(s)
+	// Obtain information on the specified host
+	host := hosts.FindHost("testhost")
+	fmt.Printf("%+v\n", host)
+	// Obtain information on specified options
+	hostname := host.FindOption("HostName").Value
+	fmt.Printf("%+v\n", hostname)
+}
+```
+
+```sh
+PS C:\src\smp> go run .\cmd\main.go
+{Name:testhost Options:[{Name:HostName Value:192.0.2.1} {Name:User Value:myuser} {Name:IdentityFile Value:~/.ssh/id_rsa} {Name:ServerAliveInterval Value:60}]}
+192.0.2.1
+```
+
 ## License
 Copyright (c) 2023 harakeishi