Create new phpcs rules

phpcs.xml

@@ -0,0 +1,17 @@
+<?xml version="1.0"?>
+<ruleset name="Roots">
+  <description>Roots Coding Standards</description>
+
+  <!-- Use PSR-2 as a base -->
+  <rule ref="PSR2"/>
+
+  <!-- Show colors in console -->
+  <arg value="-colors"/>
+
+  <!-- Show sniff codes in all reports -->
+  <arg value="s"/>
+
+  <!-- Scan these files -->
+ <file>functions.php</file>
+ <file>src</file>
+</ruleset>