Added package status badge to readme

Added the League package status/maintainer badge to the readme.

![Let Me Roll That For You](https://img.shields.io/endpoint?url=https%3A%2F%2Fraw.githubusercontent.com%2FLeague-of-Foundry-Developers%2Fleague-repo-status%2Fshields-endpoint%2Flmrtfy.json)

https://github.com/League-of-Foundry-Developers/league-repo-status

README.md

@@ -1,5 +1,6 @@
 # Let Me Roll That For You!
 
+![Let Me Roll That For You](https://img.shields.io/endpoint?url=https%3A%2F%2Fraw.githubusercontent.com%2FLeague-of-Foundry-Developers%2Fleague-repo-status%2Fshields-endpoint%2Flmrtfy.json)
 ![Latest Release Download Count](https://img.shields.io/badge/dynamic/json?label=Downloads@latest&query=assets%5B1%5D.download_count&url=https%3A%2F%2Fapi.github.com%2Frepos%2FLeague-of-Foundry-Developers%2Ffvtt-module-lmrtfy%2Freleases%2Flatest)
 [![Forge Installs](https://img.shields.io/badge/dynamic/json?label=Forge%20Installs&query=package.installs&suffix=%25&url=https%3A%2F%2Fforge-vtt.com%2Fapi%2Fbazaar%2Fpackage%2Flmrtfy&colorB=4aa94a)](https://forge-vtt.com/bazaar#package=lmrtfy)