Update README.md

README.md

 # Unity preview DXR
-This repository contains a preview Unity Project that uses DXR.
+This repository contains a startup Unity Project that uses DXR. It allow to start with Unity HDRP DXR.
 
 You can clone the repository using tools like Git, Github Desktop, or Sourcetree. 
 
 
 You can also download the Project zip, with every file (including the LFS files), from the release section: https://github.com/Unity-Technologies/SmallOfficeRayTracing/releases.
 
-This Project uses the real-time ray tracing feature that experimentally released in Unity 2019.3.a2. Use it with HDRP package version 7.1.1 or higher. You can not use this Project for any production work. For more information about ray tracing in HDRP, see the [Documentation](https://docs.unity3d.com/Packages/com.unity.render-pipelines.high-definition@latest/index.html?subfolder=/manual/Ray-Tracing-Getting-Started.html).
+This Project uses the real-time ray tracing feature that experimentally released in Unity 2019.3b1. Use it with HDRP package version 7.1.1 or higher. You can not use this Project for any production work. For more information about ray tracing in HDRP, see the [Documentation](https://docs.unity3d.com/Packages/com.unity.render-pipelines.high-definition@latest/index.html?subfolder=/manual/Ray-Tracing-Getting-Started.html).
 
 Requirements:
 - NVIDIA RTX series card with the latest drivers [here](https://www.nvidia.com/Download/index.aspx?lang=com)
 Installation:
-- Clone the Project or download the Project from the release section of Github and unzip it.
+- Install latest Unity 2019.3
+- Clone the Project
-- Create a new Project and select DXR High Definition RP (Preview) - Be sure you are to create the Project for at least Unity version 2019.2.0a5.
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-See usage here: https://github.com/Unity-Technologies/Unity-Experimental-DXR/blob/master/documentation/The%20Experimental%20DXR%20project%20manual.pdf
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-Unity Forum Link: https://forum.unity.com/threads/unity-experimental-hdrp-dxr.656092/
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-Note: You can use the binaries available in this repo with this branch from the SRP repo:
-https://github.com/Unity-Technologies/ScriptableRenderPipeline/tree/experimental-dxr-release
-This is the branch that the template Project includes in case you don't want to install the template Project.
+- The project is pre-configure to work with HDRP DXR
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-- When installing the DXR Project template I get this error:
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-<img src = "https://github.com/Unity-Technologies/Unity-Experimental-DXR/blob/master/documentation/Error0.png" >
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-This is due to a Windows limitation that can't handle more than 260 character for filename. 
-Use a shorter folder and Project name to allow the template to install correctly. Like "C:\DXR".