Update libGDX version information in project generation

Updated libGDX version information to use dynamic site data and provided a link to the README for snapshot details.

Author: crykn

wiki/start/project-generation.md

@@ -61,7 +61,7 @@ Proceeding to the next screen takes you to the Third-Party screen. These are add
 ## Settings
 The final screen allows you to set versions and other options:
 
-* **libGDX Version**: The official version of libGDX to be included in your project. The latest stable version is `1.14.0`. To implement the latest changes and bugfixes, use `1.14.1-SNAPSHOT`. Keep in mind that snapshot builds may be unstable and subject to API breaking changes.<br>
+* **libGDX Version**: The official version of libGDX to be included in your project. The latest stable version is `{{ site.data.versions }}`. To implement the latest changes and bugfixes, use the snapshot version, which can be found on top of the [README file on GitHub](https://github.com/libgdx/libgdx#readme). Keep in mind that snapshot builds may be unstable and subject to API breaking changes.<br>
 * **Java Version**: The version of Java to be used to build your project.<br> 
   * `8` is the recommendation for most projects.<br>
   * Use `7` if you want to support old Android devices or iOS.<br>