Update CI workflow and README badges

Renamed the MSBuild workflow to 'build' and updated actions/checkout to v4 in the workflow file. Added GitHub Actions badge to README and reordered platform badge for improved visibility.

.github/workflows/msbuild.yml

@@ -1,6 +1,6 @@
 # run a build for the latest version and upload the artifacts to a "latest" pre-release
 
-name: MSBuild
+name: build
 
 on:
   push:
@@ -26,7 +26,7 @@ jobs:
     runs-on: windows-latest
 
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
       with:
         submodules: recursive
         fetch-depth: 0

README.md

@@ -6,9 +6,10 @@
 
 [![license](https://img.shields.io/github/license/QL-Win/QuickLook.svg)](https://www.gnu.org/licenses/gpl-3.0.en.html)
 [![AppVeyor](https://img.shields.io/appveyor/ci/xupefei/QuickLook.svg)](https://ci.appveyor.com/project/xupefei/QuickLook)
+[![Actions](https://github.com/QL-Win/QuickLook/actions/workflows/msbuild.yml/badge.svg)](https://github.com/QL-Win/QuickLook/actions/workflows/msbuild.yml)
+[![Platform](https://img.shields.io/badge/platform-Windows-blue?logo=windowsxp&color=1E9BFA)](https://dotnet.microsoft.com/en-us/download/dotnet/latest/runtime)
 [![Github All Releases](https://img.shields.io/github/downloads/QL-Win/QuickLook/total.svg)](https://github.com/QL-Win/QuickLook/releases)
 [![GitHub release](https://img.shields.io/github/release/QL-Win/QuickLook.svg)](https://github.com/QL-Win/QuickLook/releases/latest)
-[![Platform](https://img.shields.io/badge/platform-Windows-blue?logo=windowsxp&color=1E9BFA)](https://dotnet.microsoft.com/en-us/download/dotnet/latest/runtime)
 
 <img src="https://user-images.githubusercontent.com/1687847/64730506-2a60d100-d4e8-11e9-95a6-f13dbd869b2a.jpeg" width="400">