docs(readme): add GuardRails badge

guardrails[bot] · guardrails[bot] · commit 9988f5f225c3 · 2018-10-08T13:57:33.000Z
diff --git a/README.md b/README.md
@@ -1,5 +1,7 @@
 # MySQL-toolkit
 
+[![GuardRails badge](https://badges.production.guardrails.io/mrstephenneal/mysql-toolkit.svg)](https://www.guardrails.io)
+
 Development toolkit for building applications that interact with a MySQL database.
 
 ## Getting Started
