Add build status to README

sirbrillig · sirbrillig · commit e666bc0138e6 · 2017-12-12T18:51:38.000-05:00
diff --git a/README.md b/README.md
@@ -1,5 +1,7 @@
 # PHP_CodeSniffer VariableAnalysis
 
+[![CircleCI](https://circleci.com/gh/sirbrillig/phpcs-variable-analysis.svg?style=svg)](https://circleci.com/gh/sirbrillig/phpcs-variable-analysis)
+
 Plugin for PHP_CodeSniffer static analysis tool that adds analysis of problematic variable use.
 
  * Performs static analysis of variable use.
