Update README.md (#38)

README.md

@@ -9,7 +9,7 @@ This requires the MinGW version of **CodeBlocks 20.03 or newer** to be installed
 1) Download and install [Git](https://git-scm.com/downloads) 
 2) Download [CodeBlocks](https://www.codeblocks.org/downloads/) in latest version. It is *strongly* recommended to use the version which includes MinGW, as otherwise you will have to install and configure it separately, and there have been issues reported with missing header files when a standalone MinGW installation is used.
 3) Clone this repository. 
-- Open **Command prompt (Win key + R -> cmd -> Enter)** or **PowerShell (Win key + R -> powershell -> Enter)** or **Git bash** (if you want different folder than _C:/Users/username_ you have to navigate to it) and type: `git clone https://github.com/lvgl/lv_sim_codeblocks_win.git`
+- Open **Command prompt (Win key + R -> cmd -> Enter)** or **PowerShell (Win key + R -> powershell -> Enter)** or **Git bash** (if you want different folder than _C:/Users/username_ you have to navigate to it) and type: `git clone --recurse-submodules https://github.com/lvgl/lv_sim_codeblocks_win.git`
 4) Open **CodeBlocks** and select **Open an existing project**. Navigate to the **lv_sim_codeblocks_win** folder and select **lvgl.cbp**. 
 5) Click on **Build and Run** or press **F9**. 
 6) If everything goes well, you should see your simulator running.