Move Extension installation in minimal example

Documentation/CodeSnippets/ExtensionConfiguration/ComposerJson.rst.txt

@@ -1,12 +1,11 @@
-..  Generated by https://github.com/TYPO3-Documentation/t3docs-codesnippets
 ..  Extracted from EXT:site_package/composer.json
 
 ..  code-block:: json
-    :caption: EXT:site_package/composer.json
+    :caption: EXT:my-site-package/composer.json
     :linenos:
 
     {
-    	"name": "t3docs/site-package",
+    	"name": "myvendor/my-site-package",
     	"type": "typo3-cms-extension",
     	"description": "Example site package from the site package tutorial",
     	"require": {
@@ -20,7 +19,7 @@
     	},
     	"extra": {
     		"typo3/cms": {
-    			"extension-key": "site_package"
+    			"extension-key": "my_site_package"
     		},
     		"branch-alias": {
     			"dev-master": "13.0.x-dev"

Documentation/CodeSnippets/codesnippets.php

@@ -40,13 +40,6 @@
     ],
 
     #code Snippets Extension Configuration
-    [
-        'action' => 'createCodeSnippet',
-        'sourceFile' => 'EXT:site_package/composer.json',
-        'targetFileName' => 'ExtensionConfiguration/ComposerJson.rst.txt',
-        'caption' => 'EXT:site_package/composer.json',
-        'showLineNumbers' => true
-    ],
     [
         'action' => 'createCodeSnippet',
         'sourceFile' => 'EXT:site_package/Configuration/Sets/SitePackage/config.yaml',

Documentation/Images/AutomaticScreenshots/FlushFrontendCaches.rst.txt

@@ -1,6 +1,5 @@
-.. Automatic screenshot: Remove this line if you want to manually change this file
 
 .. figure:: /Images/AutomaticScreenshots/FlushFrontendCaches.png
    :class: with-shadow
 
-   Flush the frontend cache after changing template files
+   Flush the frontend cache after changing template files

Documentation/Index.rst

@@ -143,7 +143,6 @@ https://github.com/TYPO3-Documentation/site_package
     Prerequisites/Index
     CreatePages/Index
     MinimalExample/Index
-    ExtensionInstallation/Index
     Assets/Index
     FluidTemplates/Index
     ContentMapping/Index