Add a note to 1.0.0 release notes

Author: cmsj

_posts/2024-08-06-1.0.0.md

@@ -6,6 +6,12 @@ permalink: /releasenotes/1.0.0.html
 
 Minimum macOS version: 12.0
 
+# Anniversary
+
+This release comes after 100 releases of 0.9, and just two months shy of Hammerspoon's 10th birthday.
+
+Thank you all for your part in this project, it's been a lot of fun!
+
 ## Fixed
 
 - Large amounts of Console window history should now consume less RAM and Hammerspoon should no longer hang when large amounts of text are written quickly to the window.