CHANGELOG.md: address suzmue's comment and apply style fixes

Change-Id: Ie2b61dad6d76135d4baa256fc3b14d8149129a65
Reviewed-on: https://go-review.googlesource.com/c/vscode-go/+/551477
Commit-Queue: Hyang-Ah Hana Kim <[email protected]>
TryBot-Result: kokoro <[email protected]>
Reviewed-by: Suzy Mueller <[email protected]>

Author: hyangah

CHANGELOG.md

@@ -38,7 +38,7 @@ changes can be found in
 
 ### Thanks
 
-Thank you for your contribution @tekig, @rogeryk, @suzmue, @hyangah!
+Thank you for your contribution @tekig, @rogeryk, @hyangah!
 
 ## v0.40.0 - 15 Nov, 2023