fix(Unity): Remove version from provided GIT URL (#13770)

Author: bitsandfoxes

docs/platforms/unity/index.mdx

@@ -42,9 +42,11 @@ Don't already have an account and Sentry project established? Head over to [sent
 Install the package via the [Unity Package Manager using a Git URL](https://docs.unity3d.com/Manual/upm-ui-giturl.html) to Sentry's SDK repository:
 
 ```
-https://github.com/getsentry/unity.git#{{@inject packages.version('sentry.dotnet.unity', '0.0.5') }}
+https://github.com/getsentry/unity.git
 ```
 
+To use a specific version of the SDK, append `#{{@inject packages.version('sentry.dotnet.unity', '0.0.5') }}` to the URL.
+
 ## Configure
 
 Installing the SDK will add an entry to Unity's top menu: `Tools` > `Sentry`. When you first open the menu, a wizard will guide you through the process of associating your game with a Sentry project and set up the initial configuration for you. The minimum configuration required is the [DSN](/product/sentry-basics/dsn-explainer/) to your project.