doc: Add an example of synchronized zoom
doc: Add an example of synchronized zoom

ARM-software/trappy,JaviMerino/trappy,bjackman/trappy,bjackman/trappy,sinkap/trappy,sinkap/trappy,joelagnel/trappy,JaviMerino/trappy,joelagnel/trappy,bjackman/trappy,ARM-software/trappy,joelagnel/trappy,JaviMerino/trappy,ARM-software/trappy,sinkap/trappy,sinkap/trappy,bjackman/trappy,ARM-software/trappy,joelagnel/trappy