Missing ChangeLog entry for 0.4.0

[ryandesign]

ChangeLog has no entry for release 0.4.0 and it has typos:

--- CHANGELOG.md.orig	2021-11-14 02:48:00.000000000 -0600
+++ CHANGELOG.md	2024-07-02 15:22:11.000000000 -0500
@@ -1,6 +1,6 @@
 ## 0.3.0
 
-The CLI has been split to it's own repo in this release, and therefore the changelog from here on will be CLI only.
+The CLI has been split to its own repo in this release, and therefore the changelog from here on will be CLI only.
 For Wren language/VM changes, see https://github.com/wren-lang/wren.
 
 This release was focused on streamlining the build process and making platform support consistent.
@@ -49,7 +49,7 @@
 - Added `wrenAbortFiber`
 
 ### CLI
-Please note that beyond 0.2.0 the CLI will have it's own changelog.
+Please note that beyond 0.2.0 the CLI will have its own changelog.
 This list is not exhaustive. For a fuller history see the commit log above.
 
 - Add path module