Update CHANGELOG.MD

CHANGELOG.MD

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 # Change Log
 All notable changes to this project will be documented in this file.
 
+## 2022-07-24
+
+### Changed
+
+- **Home Assistant OS VM**
+  - Present the drive to the guest as a solid-state drive rather than a rotational hard disk. There is no requirement that the underlying storage actually be backed by SSD's. 
+  - When the VM’s filesystem marks blocks as unused after deleting files, the SCSI controller will relay this information to the storage, which will then shrink the disk image accordingly.
+
+
 ## 2022-07-22
 
 ### Changed