feat: add release notes to extension installation

gulpfile.babel.js/config.js

@@ -43,7 +43,7 @@ export const config = {
       watch: ['src/structure/**/*.{php,html,xml,ini,less,json,js,css}'],
     },
     copyrelease: {
-      src: ['src/structure/**/**', 'src/structure/**/.*', '!src/structure/**/*.{php,html,xml,ini,less,json,js,css}', '!src/structure/**/.*.{php,html,xml,ini,less,json,js,css}'],
+      src: ['RELEASE_NOTES.md','src/structure/**/**', 'src/structure/**/.*', '!src/structure/**/*.{php,html,xml,ini,less,json,js,css}', '!src/structure/**/.*.{php,html,xml,ini,less,json,js,css}'],
       replacesrc: ['src/structure/**/**.{php,html,xml,ini,less,json,js,css}', 'src/structure/**/.*.{php,html,xml,ini,less,json,js,css}'],
       dest: 'releasefiles/'
     },
@@ -90,6 +90,10 @@ export const config = {
     {
       src: './releasefiles/plugins/system/kickyootheme/**/**',
       dest: 'sourcefiles/plg_system_kickyootheme'
+    },
+    {
+      src: './releasefiles/RELEASE_NOTES.md',
+      dest: 'sourcefiles/com_sportsmanager/admin/'
     }
   ],
   package: [

src/structure/administrator/components/com_sportsmanager/src/View/Sportsmanager/HtmlView.php

@@ -24,6 +24,15 @@ class HtmlView extends BaseHtmlView
         ?>
         <h3><?php echo Text::_('COM_SPORTSMANAGER'); ?> &#8211; Created by Sven Nickel | Maintained by DTFB</h3>
         <?php
+
+        $notesPath = JPATH_COMPONENT_ADMINISTRATOR . '/RELEASE_NOTES.md';
+        if (file_exists($notesPath)) {
+            $notes = file_get_contents($notesPath);
+            echo '<div style="padding:1em;"><h3>Release Notes</h3><pre>' .
+                htmlspecialchars($notes) . '</pre></div>';
+        }
+
+
         // Display the template
         parent::display($tpl);
     }

src/structure/sportsmanager.xml

@@ -37,6 +37,7 @@
     <files folder="admin">
       <filename>access.xml</filename>
       <filename>index.html</filename>
+      <filename>RELEASE_NOTES.md</filename>
       <folder>services</folder>
       <folder>src</folder>
 			<folder>tmpl</folder>