Rename advert media and pages so ad blockers do not hide them

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01YDRjtmAiNpo5mK5N3d7QwZ

content/history/apple-ii-first-deliveries.md

@@ -22,4 +22,4 @@ Apple logo is designed by Rob Janoff. The first Apple II advert is designed too
 
 The **Apple 1** production is stopped ten months after its introduction. 175 Apple 1 kits had been sold for $549 each to only one customer, Paul Terrell, manager of the Byte Shop chain, who sold them for $666.
 
-![](/media/history/images/apple_ii_advertd_3.jpg)
+![](/media/history/images/apple_ii_pubd_3.jpg)

content/history/lear-siegler-introduces-the-adm-3a-video-display-terminal-vdt.md

@@ -33,4 +33,4 @@ The setup of this 'Dumb machine' (as Lear Siegler advertised) was done using...
 
 Thanks to Sebastien Richter and his [website](http://vauteh.de) for the system image.
 
-![](/media/history/images/learsiegler_adm3a_advert_2.jpg)
+![](/media/history/images/learsiegler_adm3a_pub_2.jpg)