Add start script

README.md

@@ -11,4 +11,6 @@ path to the binaries.
   `ifconfig` (kind of redundant because we can use `ip` in the WSL but keeping
   it here anyway for convenience)
 - `wsl`: use the WSL to WSL the WSL.
+- `start`: start `tmux` as a sub-process of `ssh-agent` and attach to the
+   `main` session, creating it if not existent.
 

bin/start

@@ -0,0 +1,3 @@
+#!/bin/sh
+exec ssh-agent tmux new-session -A -t main "$@"
+