Fix codeblock (#185)

MartijnCuppens · web-flow · commit e26faadbcf87 · 2020-04-20T22:05:57.000+02:00
diff --git a/readme.md b/readme.md
@@ -28,7 +28,7 @@ yarn add @projectwallace/css-analyzer
 
 ## Usage
 
-````js
+```js
 const analyze = require('@projectwallace/css-analyzer');
 
 analyze(`
