Fix README.md

Author: lruozzi9

.php-version

@@ -1 +1 @@
-8.2
+8.3

README.md

@@ -102,17 +102,20 @@ To contribute to this plugin clone this repository, create a branch for your fea
 
 ```bash
 composer install
-(cd tests/Application && yarn install)
-(cd tests/Application && yarn build)
-(cd tests/Application && APP_ENV=test bin/console assets:install public)
+(cd vendor/sylius/test-application && yarn install)
+(cd vendor/sylius/test-application && yarn build)
+vendor/bin/console assets:install
 
 docker-compose up -d # only if you haven't mysql and mailhog installed locally 
 
-(cd tests/Application && APP_ENV=test bin/console doctrine:database:create)
-(cd tests/Application && APP_ENV=test bin/console doctrine:schema:create)
-```
+vendor/bin/console doctrine:database:create
+vendor/bin/console doctrine:migrations:migrate -n
+# Optionally load data fixtures
+vendor/bin/console sylius:fixtures:load -n
 
-To be able to setup a plugin's database, remember to configure you database credentials in `tests/Application/.env` and `tests/Application/.env.test`.
+symfony server:ca:install
+symfony server:start -d
+```
 
 ### Running plugin tests