update coverage and changelog

Signed-off-by: Alexandru Agache <aagch@amazon.com>

Author: alexandruag

CHANGELOG.md

@@ -1,10 +1,14 @@
 # Changelog
 ## [Unreleased]
 
+### Added
+
+  - [[#140]](https://github.com/rust-vmm/vm-memory/issues/140): Add dirty bitmap tracking abstractions. 
+
 ### Deprecated 
 
   - [[#133]](https://github.com/rust-vmm/vm-memory/issues/8): Deprecate `GuestMemory::with_regions()`,
-   `GuestMemory::with_regions_mut()`, `GuestMemory::map_and_fold()`
+   `GuestMemory::with_regions_mut()`, `GuestMemory::map_and_fold()`.
 
 ## [v0.5.0]
 

coverage_config_x86_64.json

@@ -1,5 +1,5 @@
 {
-  "coverage_score": 85.4,
+  "coverage_score": 87.4,
   "exclude_path": "mmap_windows.rs",
   "crate_features": "backend-mmap,backend-atomic"
 }