Add StyleCI badge

Jordan Hall · Jordan Hall · commit 256f249c23f4 · 2018-12-13T10:59:53.000Z
diff --git a/README.md b/README.md
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 # PHP Simple Google Maps
 
+[![StyleCI](https://github.styleci.io/repos/159809368/shield?branch=master)](https://github.styleci.io/repos/159809368)
+
 This package provides a simple PHP client for various Google Maps APIs.
 
 ## Installation
