Add standalone build badge

Author: LucaScheller

README.md

@@ -1,7 +1,10 @@
 | <img src="https://raw.githubusercontent.com/LucaScheller/VFX-UsdAssetResolver/main/tools/UsdAssetResolver_Logo.svg" width="128"> |  <h1> OpenUSD Asset Resolver </h1> |
 |--|--|
 
-[![Deploy Documentation to GitHub Pages](https://github.com/LucaScheller/VFX-UsdAssetResolver/actions/workflows/mdbook.yml/badge.svg)](https://github.com/LucaScheller/VFX-UsdAssetResolver/actions/workflows/mdbook.yml) [![Build USD Asset Resolvers against Houdini](https://github.com/LucaScheller/VFX-UsdAssetResolver/actions/workflows/build_houdini.yml/badge.svg)](https://github.com/LucaScheller/VFX-UsdAssetResolver/actions/workflows/build_houdini.yml) [![Build USD Asset Resolvers against Maya](https://github.com/LucaScheller/VFX-UsdAssetResolver/actions/workflows/build_maya.yml/badge.svg)](https://github.com/LucaScheller/VFX-UsdAssetResolver/actions/workflows/build_maya.yml)
+[![Deploy Documentation to GitHub Pages](https://github.com/LucaScheller/VFX-UsdAssetResolver/actions/workflows/mdbook.yml/badge.svg)](https://github.com/LucaScheller/VFX-UsdAssetResolver/actions/workflows/mdbook.yml)
+[![Build USD Asset Resolvers against USD](https://github.com/LucaScheller/VFX-UsdAssetResolver/actions/workflows/build_standalone.yml/badge.svg)](https://github.com/LucaScheller/VFX-UsdAssetResolver/actions/workflows/build_standalone.yml)
+[![Build USD Asset Resolvers against Houdini](https://github.com/LucaScheller/VFX-UsdAssetResolver/actions/workflows/build_houdini.yml/badge.svg)](https://github.com/LucaScheller/VFX-UsdAssetResolver/actions/workflows/build_houdini.yml)
+[![Build USD Asset Resolvers against Maya](https://github.com/LucaScheller/VFX-UsdAssetResolver/actions/workflows/build_maya.yml/badge.svg)](https://github.com/LucaScheller/VFX-UsdAssetResolver/actions/workflows/build_maya.yml)
 
 
 This repository holds reference implementations for [Usd](https://openusd.org/release/index.html) [asset resolvers](https://openusd.org/release/glossary.html#usdglossary-assetresolution). The resolvers are compatible with the AR 2.0 standard proposed in the [Asset Resolver 2.0 Specification](https://openusd.org/release/wp_ar2.html). As the Usd documentation offers quite a good overview over the overall asset resolution system, we will not be covering it in this repository's documentation.