add script for generating and publishing the api docs to github

script/generate_api_docs.sh

@@ -0,0 +1,21 @@
+#!/bin/bash
+
+set -e
+
+if [ ! -d /tmp/postal-api/.git ];
+then
+  git clone git@github.com:atech/postal-api /tmp/postal-api
+else
+  git -C /tmp/postal-api pull origin master
+  git -C /tmp/postal-api reset --hard HEAD
+fi
+
+rm -Rf /tmp/postal-api/*
+
+bundle exec moonrope api /tmp/postal-api
+
+cd /tmp/postal-api
+
+git add .
+git commit -m "update docs"
+git push origin master