Update docs for ssm_ssh
# This script sets up ssh via ssm to a server type (One of Consul Server, Nomad Agent or Nomad Server).
# This is a temporary workaround until we set up a VPN
#
-# Input (optional): Port to forward to. This will be both the port on the server to forward and the local port that is forwarded to. Defaults to port 1234
+# Input: Server type. This should be one of "Consul Server", "Nomad Agent" or "Nomad Server"
+# Usage: ./bin/aws/ssm_ssh.sh "Nomad Server"
set -euo pipefail
