Este no esta como la version del libro ya que tenia cambios mas actualizados como ver el video de FB

README-en.md

 
 4. Taken the Pre-Lab quiz that is found in Moodle.
 
+5. Visit the following Facebook page to see how the green technology is used in some Hollywood movies: https://www.facebook.com/video.php?v=920387528037801
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 ####Examples:
 
-1. `QRgb myRgb = qRgb(0xff, 0x00, 0xff);`: Assigns the value `0xff00ff` to `myRgb` which represents the color ![figure2.jpg](images/figure4.jpg)
+1. `QRgb myRgb = qRgb(0xff, 0x00, 0xff);`: Assigns the value `0xff00ff` to `myRgb` which represents the color ![figure4.png](images/figure4.png)
 
     Notice that the value `0xff00ff` represents the values `0xff`, `0x0`, and `0xff`, that correspond to the red, green and blue components in `myRgb`.
 
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 !INCLUDE "../../eip-diagnostic/green-screen/en/diag-green-screen-01.html"
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 !INCLUDE "../../eip-diagnostic/green-screen/en/diag-green-screen-02.html"
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 !INCLUDE "../../eip-diagnostic/green-screen/en/diag-green-screen-03.html"
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 !INCLUDE "../../eip-diagnostic/green-screen/en/diag-green-screen-04.html"
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 !INCLUDE "../../eip-diagnostic/green-screen/en/diag-green-screen-05.html"
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 [2] http://en.wikipedia.org/wiki/Chroma_key
 
-[3] http://doc.qt.io/qt-4.8/qimage.html
+[3] http://doc.qt.io/qt-4.8/qimage.html

README-es.md

 
 3. Haber estudiado los conceptos e instrucciones para la sesión de laboratorio.
 
-4. Visitar la siguiente página de Facebook para ver cómo se ha usado la tecnología de pantalla verde en algunas películas de Hollywood: https://www.facebook.com/video.php?v=920387528037801 
+4. Haber tomado el quiz Pre-Lab que se encuentra en Moodle.
+
+5. Visitar la siguiente página de Facebook para ver cómo se ha usado la tecnología de pantalla verde en algunas películas de Hollywood: https://www.facebook.com/video.php?v=920387528037801 
 
 
 
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 !INCLUDE "../../eip-diagnostic/green-screen/es/diag-green-screen-01.html"
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 !INCLUDE "../../eip-diagnostic/green-screen/es/diag-green-screen-02.html"
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 !INCLUDE "../../eip-diagnostic/green-screen/es/diag-green-screen-03.html"
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 !INCLUDE "../../eip-diagnostic/green-screen/es/diag-green-screen-04.html"
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 !INCLUDE "../../eip-diagnostic/green-screen/es/diag-green-screen-05.html"
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