Fix link formatting in Hermes release guide

Author: cipolleschi

docs/guide-hermes-release.md

@@ -130,7 +130,7 @@ From the `250829098.0.0-stable` branch
 ### Step 6: [Only for Branch Cut] Bump hermes versions on React Native `main` branch
 1. Go to the react-native repository
 2. Update the [`packages/react-native/sdks/hermes-engine/versions.properties` file]([url](https://github.com/facebook/react-native/blob/main/packages/react-native/sdks/hermes-engine/version.properties)) by bumping the `HERMES_V1_VERSION_NAME`
-This is an [example PR]([url](https://github.com/facebook/react-native/pull/55042).
+This is an [example PR](https://github.com/facebook/react-native/pull/55042).
 
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