[TASK] Update README install instructions

Avoid suggesting any security relevant credentials like
database configuration or admin accounts, instead
passwords should be generated and not be passed
as command line arguments.

Also match example site with the development server example
and fix `create-project` command line for v13.

Author: bnf

README.md

@@ -9,7 +9,7 @@ Get going quickly with TYPO3 CMS.
 
 ## Quickstart
 
-* `composer create-project typo3/cms-base-distribution project-name ^12`
+* `composer create-project typo3/cms-base-distribution project-name ^13`
 * `cd project-name`
 
 ### Setup
@@ -28,19 +28,16 @@ To do this, you need to execute the following command and substitute the argumen
 with your own environment configuration.
 
 ```bash
+export TYPO3_SETUP_ADMIN_PASSWORD=$(tr -dc "_A-Za-z0-9#=$()/" < /dev/urandom | head -c24)
 composer exec -- typo3 setup \
     --no-interaction \
-    --driver=mysqli \
-    --username=typo3 \
-    --password=typo3 \
-    --host=127.0.0.1 \
-    --port=3306 \
-    --dbname=typo3 \
+    --server-type=other \
+    --driver=sqlite \
     --admin-username=admin \
-    --admin-email="[email protected]" \
-    --admin-user-password=password \
+    --admin-email="[email protected]" \
     --project-name="My TYPO3 Project" \
-    --create-site="https://localhost/"
+    --create-site="http://localhost:8000/"
+echo "Admin password: ${TYPO3_SETUP_ADMIN_PASSWORD}"
 ```
 
 ### Development server