Update README.md

Author: roopeshsn

README.md

@@ -9,7 +9,7 @@ Built with love by Roopesh and friends in Go.
 ## Install using Go
 
 ```
-go install github.com/opennetworktools/netmap
+go install github.com/opennetworktools/netmap@v0.1.1
 ```
 
 ## Usage

cmd/version.go

@@ -15,6 +15,6 @@ var versionCmd = &cobra.Command{
 	Short: "Print the version number of Netmap",
 	Long:  `All software has versions. This is Netmap's`,
 	Run: func(cmd *cobra.Command, args []string) {
-		fmt.Println("netmap v0.1.0 -- HEAD")
+		fmt.Println("netmap v0.1.1 -- HEAD")
 	},
 }