Update README.md

Author: ejunjsh

README.md

@@ -15,7 +15,7 @@ enable ip forwarding
 
 ## install
 
-    go get github.com/ejunjsh/d/cmds/d
+    go get github.com/ejunjsh/d/cmd/d
 
 ## usage
 
@@ -92,4 +92,4 @@ you will see it returns a bash and the host name is the container name `16724017
 
 ## reference
 
-https://github.com/xianlubird/mydocker
+https://github.com/xianlubird/mydocker