adds readme copy to plugin folder

Author: anthonyburchell

package.json

@@ -9,7 +9,7 @@
 	"license": "GPLv2",
 	"homepage": "https://wpengine.com",
 	"scripts": {
-		"build": "wp-scripts build --output-path=plugin/build",
+		"build": "wp-scripts build --output-path=plugin/build && cp readme.txt plugin/",
 		"makepot": "./vendor/bin/wp i18n make-pot plugin --slug=wpe-php-compat",
 		"test:e2e": "wp-scripts test-e2e",
 		"start": "wp-scripts start --output-path=plugin/build",

plugin/readme.txt

@@ -2,8 +2,8 @@
 Contributors:      wpengine, octalmage, stevenkword, Taylor4484, pross, jcross, rfmeier, cadic, dkotter, ankit-k-gupta, jeffpaul
 Tags:              php 7, php 8, php, version, compat, compatibility, checker, wp engine, wpe, wpengine
 Requires at least: 5.6
-Tested up to:      6.2
-Stable tag:        1.6.2
+Tested up to:      6.4
+Stable tag:        1.6.4
 License:           GPLv2 or later
 License URI:       http://www.gnu.org/licenses/gpl-2.0.html
 
@@ -87,6 +87,14 @@ You will find the plugin options in the WP Admin `Tools => PHP Compatibility` me
 2. Compatibility results screen
 
 == Changelog ==
+
+= 1.6.4 =
+- Updates are now served from WP Engine servers.
+- Update dependencies.
+
+= 1.6.3 =
+- Fix issue where Buffer was not available to the scans.
+
 = 1.6.2 =
 - Update packages.