CHANGELOG.md: add v0.35.1 description

Change-Id: I9f36b4f75cebea46a8a9ff36c6ecff5967d1424b
Reviewed-on: https://go-review.googlesource.com/c/vscode-go/+/418195
TryBot-Result: kokoro <noreply+kokoro@google.com>
Run-TryBot: Hyang-Ah Hana Kim <hyangah@gmail.com>
Reviewed-by: Jamal Carvalho <jamal@golang.org>
(cherry picked from commit 5e111fe)
Reviewed-on: https://go-review.googlesource.com/c/vscode-go/+/418254
Auto-Submit: Hyang-Ah Hana Kim <hyangah@gmail.com>

Author: hyangah

CHANGELOG.md

@@ -1,4 +1,11 @@
-## v0.35.0 - 13 July, 2022
+## v0.35.1 - 19 July, 2022
+
+A list of all issues and changes can be found in the [v0.35.1 milestone](https://github.com/golang/vscode-go/milestone/50) and [commit history](https://github.com/golang/vscode-go/compare/v0.35.0...v0.35.1).
+
+### Bug Fix
+- Disabled experimental gopls features (e.g. semantic highlighting).
+
+## v0.35.0 - 18 July, 2022
 
 A list of all issues and changes can be found in the [v0.35.0 milestone](https://github.com/golang/vscode-go/milestone/47) and [commit history](https://github.com/golang/vscode-go/compare/v0.34.1...v0.35.0).