Update README.md

Author: hacksider

README.md

@@ -18,16 +18,21 @@ Dynamically improve the performance by using the --resizable parameter
 ### Face Mapping
 
 Track faces and change it on the fly
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 ![face_mapping_source](face_mapping_source.gif)
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 source video
 
 ![face-mapping](face_mapping.png)
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 Tick this switch
 
 ![face-mapping2](face_mapping2.png)
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 Map the faces
 
 ![face_mapping_result](face_mapping_result.gif)
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 And see the magic!