Docs: Sync changelog

Note: modern Xcode cannot build for macOS 10.6 even when
-mmacosx-version-min=10.6 is provided and many 10.6 targets
are 32-bit. If anyone needs to compile for this legacy, they
are really on their own.

Changelog.md

@@ -3,7 +3,8 @@ OpenCore Changelog
 #### v1.0.0
 - Updated builtin firmware versions for SMBIOS and the rest
 - Switched to Apple silicon GitHub runner for CI, thx @Goooler
-- Upgraded bundled EDK-II BaseTools `EfiRom` & `GenFfs` to fat binary, dual ARM and x64 support
+- Added Apple Silicon support in all provided utilities
+- Utilities now require macOS 10.9+ (OpenCore itself still supports macOS 10.4+)
 
 #### v0.9.9
 - Fixed incorrect warning in ocvalidate