Add changelog items for 1.13.3

Fixes: #463

readme.txt

@@ -66,6 +66,12 @@ If you are having problems, please try the following:
 
 = 1.13.3 =
 
+* Update "Tested up to" version to 6.3
+* Add `.wp-env.override.json` to `.gitignore`
+* Use wp_add_inline_script for createBlockTheme object
+* Update Google Fonts JSON data from API
+* Updated Requires PHP version to 7.4
+* Fix PHP 8.1 errors caused by missing page titles
 
 = 1.13.2 =
 * Update Google Fonts JSON data from API
@@ -289,24 +295,24 @@ If you are having problems, please try the following:
 * Automate release: build, version bump, changelog, deploy to wp.org
 * Automate release
 
-= 1.2.3 = 
+= 1.2.3 =
 * Add translation domain (#121)
 * Check for nonce index (#120)
 * Validating mime type of font file on server side (#119)
 
-= 1.2.2 = 
+= 1.2.2 =
 * Add capabilities and nonce checks (#118)
 
-= 1.2.1 = 
+= 1.2.1 =
 * Correcting version number
 
-= 1.2.0 = 
+= 1.2.0 =
 * Embed Google fonts and local font files in theme (#113)
 * Change button text (#112)
 * Add check and directory creation for template and parts folders. (#110)
 * Change theme.json schema of blank theme if Gutenberg isn't installed. (#107)
 
-= 1.1.3 = 
+= 1.1.3 =
 * update links, screenshots of the new changes (#97)
 * Add $schema and use Gutenberg classes (#99)
 * Update readme to include latest features (#100)
@@ -316,10 +322,10 @@ If you are having problems, please try the following:
 * Save a theme variation (#90)
 * Make UI string 'Create Block Theme' can be translatable (#92)
 
-= 1.0.1 = 
+= 1.0.1 =
 * Add option to create blank theme. (#70)
 * Improve form instructions (#76)
-* Form cleanup and Theme name check (#77) 
+* Form cleanup and Theme name check (#77)
 * Get the correct merged theme.json data (#88)
 
 = 1.0 =