Update Changelog.md

Author: Siddhesh-Agarwal

Changelog.md

@@ -1,9 +1,10 @@
 # Changelog
+
 _______________________________
 
 ## 16 June 2021 - v1.0.0
 
-- Initial Release
+- Initial Release.
 
 ## 18 June 2021 - v1.0.1
 
@@ -13,6 +14,6 @@ _______________________________
 
 ## 24 June 2021 - v1.1.0
 
-- replace warnings with Errors.
-- improved efficiency of `Null()`, `Identity()` and `matSub()`.
-- Reduced SLOC
+- Replaced warnings with errors (ValueError).
+- Improved efficiency of `Null()`, `Identity()` and `matSub()`.
+- Reduced SLOC.