README-en.md edited online with Bitbucket

README-en.md

 1. Load the project  `GreenScreenLab` into `QtCreator`. There are two ways to do this:
 
    * Using the virtual machine: Double click the file `GreenScreenLab.pro` located in the folder `/home/eip/labs/arrays-greenscreen` of your virtual machine.
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    * Downloading the project’s folder from `Bitbucket`: Use a terminal and write the command `git clone http:/bitbucket.org/eip-uprrp/arrays-greenscreen` to download the folder `arrays-greenscreen` from `Bitbucket`. Double click the file `GreenScreenLab.pro` located in the folder that you downloaded to your computer.
 
 2. Configure and run the program. The provided code creates the interface shown in Figure 5. The buttons  *Select Image* and *Select Background Image* have already been programmed to perform their actions.