Fix incorrect strikethrough syntax

mfisher87 · mfisher87 · commit 01306d1f6af9 · 2024-12-08T12:06:21.000-07:00
diff --git a/about.md b/about.md
@@ -27,7 +27,7 @@ data practitioners to inform the direction of GeoJupyter.
 
 ## Next: Community event & tool choices
 
-* ~Synchronous chat tool~ Selected Zulip
+* ~~Synchronous chat tool~~ Selected Zulip
 * Calendaring tool
 * Office hours meetings
 * Hackathon meetings
