flesh out readme

Author: avsm

Diff for: README.md

@@ -2,6 +2,39 @@ Forward SSH agent socket into a container
 
 Still experimental -- contact [email protected] if you want help.
 
+## Installation
+
+Assuming you have a `/usr/local`
+
+```
+$ git clone git://github.com/avsm/docker-ssh-agent-forward
+$ make
+$ make install
+```
+
+On every boot, do:
+
+```
+$ pinata-ssh-forward
+```
+
+and the you can run `pinata-ssh-mount` to get a Docker CLI fragment
+that adds the SSH agent socket and set `SSH_AUTH_SOCK` within the container.
+
+```
+$ pinata-ssh-mount 
+-v /Users/avsm/.pinata-sshd/ssh-1azk9Mmd27/agent.16:/tmp/ssh-agent.sock --env SSH_AUTH_SOCK=/tmp/ssh-agent.sock
+
+$ docker run -it `pinata-ssh-mount` ocaml/opam ssh [email protected]
+The authenticity of host 'github.com (192.30.252.128)' can't be established.
+RSA key fingerprint is 16:27:ac:a5:76:28:2d:36:63:1b:56:4d:eb:df:a6:48.
+Are you sure you want to continue connecting (yes/no)? yes
+Warning: Permanently added 'github.com,192.30.252.128' (RSA) to the list of known hosts.
+PTY allocation request failed on channel 0
+Hi avsm! You've successfully authenticated, but GitHub does not provide shell access.
+Connection to github.com closed.
+```
+
 ## Contributors
 
 * Justin Cormack