Update 1. Utilize modes and application initialization.md

Author: devamitbera

2. Request Flow Processing/1. Utilize modes and application initialization.md

@@ -1,11 +1,11 @@
 # Utilize modes and application initialization
 
 ## Identify the steps for application initialization.
-[app/bootstrap.php](https://github.com/magento/magento2/blob/2.2-develop/app/bootstrap.php):
+[app/bootstrap.php](https://github.com/magento/magento2/blob/2.3-develop/app/bootstrap.php):
 
 - composer autoloader, functions, umask, timezone UTC, php precision
 
-[\Magento\Framework\App\Bootstrap](https://github.com/magento/magento2/blob/2.2-develop/lib/internal/Magento/Framework/App/Bootstrap.php)::*create*
+[\Magento\Framework\App\Bootstrap](https://github.com/magento/magento2/blob/2.3-develop/lib/internal/Magento/Framework/App/Bootstrap.php)::*create*
 
 - configure autoloader - PSR-4 prepend generation\Magento