Query cache webinar: add Zoom registration link (#188)

Co-authored-by: Claude Sonnet 5.5 <noreply@anthropic.com>

Author: Mazizova

content/community/webinars/mysql-query-cache/index.md

@@ -3,6 +3,7 @@ title: "What Happened to the MySQL Query Cache?"
 description: "The MySQL Query Cache was removed because it couldn't scale on modern multicore systems. Marcelo Altmann of Readyset asks whether query caching itself was the mistake, and how a transparent cache can keep reads fast and correct."
 date: 2026-11-18
 time_display: "10:00 AM ET · 16:00 CET"
+registration_url: "https://us06web.zoom.us/webinar/register/WN_UloQfglkSwuzsfgRGFPXwA"
 images:
   - banner.jpg
 speakers:

content/resources/events/2026-11-18-query-cache-webinar.md

@@ -14,8 +14,9 @@ event-formats:
 - Online
 organizers:
 - OurSQL Foundation
+registration_url: "https://us06web.zoom.us/webinar/register/WN_UloQfglkSwuzsfgRGFPXwA"
 ---
 
 A free online session from the OurSQL Foundation, on **November 18, 2026, at 10:00 AM ET / 16:00 CET**. Marcelo Altmann, Senior Software Engineer at [Readyset](/resources/software/readyset/), revisits why the MySQL Query Cache failed, why key/value caches took over, and how Readyset combines ideas from both to deliver low-latency reads while maintaining correctness.
 
-Full details are on the [webinar page](/community/webinars/mysql-query-cache/).
+Full details and registration are on the [webinar page](/community/webinars/mysql-query-cache/).