Update readme to only include clone method

Signed-off-by: guillaume-haerinck <[email protected]>

README.md

@@ -12,16 +12,18 @@ We start by landing on planet environment tile, with limited fuel, our first mis
 
 You need to build or [install O3DE engine](https://o3de.org/download/).
 
+You need to [install git with lfs support](https://git-scm.com/downloads), and [setup a token on your github account](https://www.docs.o3de.org/docs/welcome-guide/setup/setup-from-github/#configure-credentials-for-git-lfs). Needed as the repository uses Git LFS, the "Download ZIP" button will not download assets.
+
 ## How to run
 
-1. Download (green "Code" button, then "Download ZIP") or clone the github repository (`git clone https://github.com/o3de/PlanetSurvivalGame.git`)
+1. Clone the github repository (`git clone https://github.com/o3de/PlanetSurvivalGame.git`). When prompted to authenticate, use your github username and the token as password.
 2. Launch O3DE. It will open the Project manager. Click on the **New Project** button then **Open Existing Project** option.
-3. Navigate to your download (and make sure it is unzipped). Open the **Project** folder. The project should now be registered.
+3. Navigate to the cloned repository. Open the **Project** folder. The project should now be registered.
 
 ![image](https://user-images.githubusercontent.com/87207603/201396468-0a13c0f8-8028-4121-bc4b-f4a36cf6c780.png)
 
 4. Click on the **Build Project** button, located on the **Planet_Survival_Game** image.
-5. Once the project has been built sucessfully, use the **Open Editor** button.
+5. Once the project has been built successfully, use the **Open Editor** button.
 6. The asset pre-processor will run for a bit. Once it is over you will be welcomed with the **Open a Level** window, simply pick the first one.
 
 ## Controls