docs: combine sentences in classes.md (#1572)

Bamblehorse · web-flow · commit 6e53050a9b10 · 2020-06-09T08:32:10.000+02:00
diff --git a/docs/api/wrapper/classes.md b/docs/api/wrapper/classes.md
@@ -2,7 +2,7 @@
 
 Return `Wrapper` DOM node classes.
 
-Returns Array of class names. Or a boolean if a class name is provided.
+Returns an Array of class names or a boolean if a class name is provided.
 
 - **Arguments:**
 
