Update coding standards

Use the WordPress coding standards as WebDevStudios-specific
standards have been depreciated.

.phpcs.xml

@@ -0,0 +1,64 @@
+<?xml version="1.0"?>
+<ruleset name="WordPress Coding Standards">
+	<description>Apply WordPress Coding Standards</description>
+
+	<!-- Set the memory limit to 256M.
+		 For most standard PHP configurations, this means the memory limit will temporarily be raised.
+		 Ref: https://github.com/squizlabs/PHP_CodeSniffer/wiki/Advanced-Usage#specifying-phpini-settings
+	-->
+	<ini name="memory_limit" value="256M"/>
+
+	<description>The ruleset for the WDS site documentation plugin</description>
+
+	<!-- Only check the PHP files. -->
+	<arg name="extensions" value="php" />
+
+	<!-- Report warnings, but don't block commits -->
+	<config name="ignore_warnings_on_exit" value="1"/>
+
+	<!-- Exclude the Composer Vendor directory. -->
+	<exclude-pattern>/vendor/*</exclude-pattern>
+
+	<!-- Exclude the lib Vendors directory. -->
+	<exclude-pattern>/lib/vendors/*</exclude-pattern>
+
+	<!-- Exclude the Node Modules directory. -->
+	<exclude-pattern>/node_modules/*</exclude-pattern>
+
+	<!-- Exclude PHPCS directory. -->
+	<exclude-pattern>/phpcs/*</exclude-pattern>
+
+	<!-- Exclude WPCS directory. -->
+	<exclude-pattern>/wpcs/*</exclude-pattern>
+
+	<config name="minimum_supported_wp_version" value="5.2.14"/>
+
+	<!-- WordPress-Core, WordPress-Docs & WordPress-Extra coding standards -->
+	<rule ref="WordPress">
+		<!-- Allow array short syntax. -->
+		<exclude name="Generic.Arrays.DisallowShortArraySyntax" />
+	</rule>
+
+	<!-- Check used textdomain for project -->
+	<rule ref="WordPress.WP.I18n">
+		<properties>
+			<property name="text_domain" type="array">
+				<element value="wds-site-documentation"/>
+			</property>
+		</properties>
+	</rule>
+
+	<!-- Verify that everything in the global namespace is prefixed with a theme specific prefix.
+		 Multiple valid prefixes can be provided as a comma-delimited list. -->
+	<rule ref="WordPress.NamingConventions.PrefixAllGlobals">
+		<properties>
+			<property name="prefixes" type="array" value="wds,wds_docs,WebDevStudios" />
+		</properties>
+	</rule>
+
+	<!-- WordPress Core currently supports PHP 5.6+. -->
+	<config name="testVersion" value="7.2-"/>
+
+	<!-- Only sniff the plugin. -->
+	<file>./</file>
+</ruleset>

composer.json

@@ -1,9 +1,11 @@
 {
-    "name": "webdevstudios/wds-site-documentation",
-    "description": "A plugin to host site documentation in an easily accessible place in the WordPress dashboard.",
-    "license": "GPL-2.0-or-later",
-    "type": "wordpress-plugin",
-    "require-dev": {
-        "webdevstudios/php-coding-standards": "~1.3.0"
-    }
+  "name": "webdevstudios/wds-site-documentation",
+  "description": "A plugin to host site documentation in an easily accessible place in the WordPress dashboard.",
+  "license": "GPL-2.0-or-later",
+  "type": "wordpress-plugin",
+  "require-dev": {
+    "dealerdirect/phpcodesniffer-composer-installer": "^0.7.1",
+    "phpcompatibility/phpcompatibility-wp": "^2.1.1",
+    "wp-coding-standards/wpcs": "~2.3.0"
+  }
 }