Update the supported Language/platforms list

The default image supports now more languages and platforms.
https://github.com/microsoft/vscode-dev-containers/tree/master/containers/codespaces-linux

Author: hyangah

content/github/developing-online-with-codespaces/configuring-codespaces-for-your-project.md

@@ -15,7 +15,7 @@ versions:
 
 {% data reusables.codespaces.about-configuration %}
 
-If you don't define a configuration in your repository, {% data variables.product.prodname_dotcom %} creates a codespace with a base Linux image. The base Linux image includes tools for Node.js, JavaScript, TypeScript, Python, C++, Java, C#, .NET Core, PHP, and PowerShell. For more information about the base Linux image, see the [`microsoft/vscode-dev-containers`](https://github.com/microsoft/vscode-dev-containers/tree/master/containers/codespaces-linux) repository.
+If you don't define a configuration in your repository, {% data variables.product.prodname_dotcom %} creates a codespace with a base Linux image. The base Linux image includes tools for Python, Node.js, JavaScript, TypeScript, C++, Java, C#, F#, .NET Core, PHP, PowerShell, Go, Ruby, Rust. For more information about the base Linux image, see the [`microsoft/vscode-dev-containers`](https://github.com/microsoft/vscode-dev-containers/tree/master/containers/codespaces-linux) repository.
 
 {% data reusables.codespaces.about-personalization %} {% data reusables.codespaces.codespace-config-order %} For more information, see "[Personalizing {% data variables.product.prodname_codespaces %} for your account](/github/developing-online-with-codespaces/personalizing-codespaces-for-your-account)."