updating CHANGELOG

Author: vsoch

CHANGELOG.md

@@ -17,6 +17,8 @@ and changes prior to that are (unfortunately) done retrospectively. Critical ite
 
 **changed user experience**
  - to address this [sregisty issue](https://github.com/singularityhub/sregistry/issues/56) the push client does not always state that the upload is finished. In the case that an image is frozen (and 403 status) this message is misleading.
+**pull bug**
+ - changing function to rename image after download to `shutil.move` to allow for cross device downloads.
 
 ## [v2.4.1](https://github.com/singularityware/singularity-python/releases/tag/v2.4.1) (v2.4.1)