Changelog: Document latest OpenCanopy changes

Changelog.md

@@ -21,6 +21,8 @@ OpenCore Changelog
 - Fixed ACPI table magic corruption during patching
 - Fixed unnatural OpenCanopy and FileVault 2 cursor movement
 - Fixed OpenCanopy interrupt handling causing missed events and lag
+- Improved OpenCanopy double-click detection 
+- Reduced OpenCanopy touch input lag and improved usability
 
 #### v0.6.7
 - Fixed ocvalidate return code to be non-zero when issues are found