doc: improve code conv
doc: improve code conv

Change-Id: Iee2be090ac1124756bd5c3122be086bda4291859

aldebaran/libqi,aldebaran/libqi-java,aldebaran/libqi-java,aldebaran/libqi-java,bsautron/libqi,aldebaran/libqi,aldebaran/libqi,vbarbaresi/libqi