README-en.md edited online with Bitbucket

README-en.md

 
 Test your implementation by loading object and background images and verifying the merged image.
 
-## Exercise 2 - Creating a Composite Image using a Ghost Filter
+## Exercise 2 - Creating a Composite Image using a `ghost` Filter
 
 In this exercise you will modify Exercise 1 to apply a ghost filter to each of the pixels that will be composed over the background image (if the `ghost` variable is true). The filter creates a ghost like effect on the objects composed over the background image, as in Figure 6.