Update image for end of 10 campaign post

Author: ronau

_posts/2025-05-28-end-of-10.md

@@ -2,14 +2,14 @@
 layout: post
 title: "„End of 10“ – Wir machen mit und helfen!"
 teaser: "Der Support für Windows 10 endet. Jetzt zu Linux wechseln."
-teaser_img_src: /assets/img/blog/end-of-10-tux.jpg
+teaser_img_src: /assets/img/blog/end-of-10-tux.png
 featured: true
 categories: Events
-twitter_large_img: /assets/img/blog/end-of-10-tux.jpg
-header_background: /assets/img/blog/end-of-10-tux.jpg
-image: /assets/img/blog/end-of-10-tux.jpg
+twitter_large_img: /assets/img/blog/end-of-10-tux.png
+header_background: /assets/img/blog/end-of-10-tux.png
+image: /assets/img/blog/end-of-10-tux.png
 author: toki
-header_background_caption: "Foto: ChatGPT (prompted by RoN)"
+header_background_caption: "Bild: based on Linux Tux (https://de.wikipedia.org/wiki/Datei:Tux.svg)"
 
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