Update changelog and readme

Author: allisonchou

CHANGELOG.md

@@ -12,6 +12,12 @@
 * Renaming symbol fails within a file that had recently been renamed without saving changes.
   * As a workaround, make an edit within the file before using Rename Symbol.
 
+## 1.25.5
+* Update Razor to 7.0.0-preview.23124.2 (PR: )
+  * Fix colorization when nullable operators are present ([#5570](https://github.com/OmniSharp/omnisharp-vscode/pull/5570))
+  * Add C#/HTML folding range support ([razor#8309](https://github.com/dotnet/razor/pull/8309))
+  * Formatting fixes ([razor#8318](https://github.com/dotnet/razor/pull/8318))
+
 ## 1.25.4
 * Update OmniSharp to 1.39.4 (PR: [#5544](https://github.com/OmniSharp/omnisharp-vscode/pull/5544))
   * Disable snippets in sync completion (PR: [#2497](https://github.com/OmniSharp/omnisharp-roslyn/pull/2497))

README.md

@@ -31,6 +31,12 @@ If you still need Unity or .NET Framework support, you can set `omnisharp.useMod
 
 See issue [#5120](https://github.com/OmniSharp/omnisharp-vscode/issues/5120) for more details.
 
+## What's new in 1.25.5
+* Update Razor to 7.0.0-preview.23124.2 (PR: )
+  * Fix colorization when nullable operators are present ([#5570](https://github.com/OmniSharp/omnisharp-vscode/pull/5570))
+  * Add C#/HTML folding range support ([razor#8309](https://github.com/dotnet/razor/pull/8309))
+  * Formatting fixes ([razor#8318](https://github.com/dotnet/razor/pull/8318))
+
 ## What's new in 1.25.4
 * Update OmniSharp to 1.39.4 (PR: [#5544](https://github.com/OmniSharp/omnisharp-vscode/pull/5544))
   * Disable snippets in sync completion (PR: [#2497](https://github.com/OmniSharp/omnisharp-roslyn/pull/2497))