Vendor dependencies with dep

vendor/github.com/pkg/sftp/examples/sftp-server/README.md

@@ -0,0 +1,12 @@
+Example SFTP server implementation
+===
+
+In order to use this example you will need an RSA key.
+
+On linux-like systems with openssh installed, you can use the command:
+
+```
+ssh-keygen -t rsa -f id_rsa
+```
+
+Then you will be able to run the sftp-server command in the current directory.