[TASK] Update README.md for TYPO3 v11

Author: gilbertsoft

README.md

@@ -9,26 +9,26 @@ Get going quickly with TYPO3 CMS.
 
 ## Quickstart
 
-* `composer create-project typo3/cms-base-distribution project-name ^10`
+* `composer create-project typo3/cms-base-distribution project-name ^11`
 * `cd project-name`
 
-**Setup:**
+### Setup
 
 To start an interactive installation, you can do so by executing the following
 command and then follow the wizard:
 
-```
-php vendor/bin/typo3cms install:setup
+```bash
+composer exec typo3cms install:setup
 ```
 
-**Setup unattended (optional):**
+### Setup unattended (optional)
 
 If you're a more advanced user, you might want to leverage the unattended installation.
 To do this, you need to execute the following command and substitute the arguments
 with your own environment configuration.
 
-```
-php vendor/bin/typo3cms install:setup \
+```bash
+composer exec typo3cms install:setup \
     --no-interaction \
     --database-user-name=typo3 \
     --database-user-password=typo3 \
@@ -41,18 +41,18 @@ php vendor/bin/typo3cms install:setup \
     --site-setup-type=site
 ```
 
-**Development server:**
+### Development server
 
 While it's advised to use a more sophisticated web server such as
-Apache 2 or nginx, you can instantly run the project by using PHPs` built-in
+Apache 2 or Nginx, you can instantly run the project by using PHPs` built-in
 [web server](https://secure.php.net/manual/en/features.commandline.webserver.php).
 
 * `TYPO3_CONTEXT=Development php -S localhost:8000 -t public`
 * open your browser at "http://localhost:8000"
 
-Please be aware that the built-in web server is single threaded. Which is ultimately
-a performance killer and may result in deadlocks if you execute too many requests at once.
+Please be aware that the built-in web server is single threaded and only meant
+to be used for development.
 
-# License
+## License
 
 GPL-2.0 or later