Update README.rst
Update README.rst

change link to develop branch of the tutorial.
catkira/seqan,catkira/seqan,ktrappe/seqan,hannespetur/SeqAnHTS,xenigmax/seqan,bayolau/seqan,limeng12/seqan,hannespetur/SeqAnHTS,budach/seqan,bayolau/seqan,catkira/seqan,xenigmax/seqan,PF2-pasteur-fr/seqan,PF2-pasteur-fr/seqan,limeng12/seqan,JohnReid/seqan,limeng12/seqan,JohnReid/seqan,budach/seqan,JohnReid/seqan,limeng12/seqan,bayolau/seqan,limeng12/seqan,bestrauc/seqan,bestrauc/seqan,budach/seqan,catkira/seqan,bestrauc/seqan,xp3i4/seqan,hannespetur/SeqAnHTS,catkira/seqan,ktrappe/seqan,JohnReid/seqan,bayolau/seqan,JohnReid/seqan,bayolau/seqan,catkira/seqan,catkira/seqan,xenigmax/seqan,budach/seqan,ktrappe/seqan,hannespetur/SeqAnHTS,xp3i4/seqan,budach/seqan,budach/seqan,budach/seqan,limeng12/seqan,bayolau/seqan,limeng12/seqan,PF2-pasteur-fr/seqan,ktrappe/seqan,JohnReid/seqan,catkira/seqan,PF2-pasteur-fr/seqan,ktrappe/seqan,hannespetur/SeqAnHTS,PF2-pasteur-fr/seqan,xenigmax/seqan,xp3i4/seqan,limeng12/seqan,JohnReid/seqan,limeng12/seqan,ktrappe/seqan,budach/seqan,xenigmax/seqan,bestrauc/seqan,bayolau/seqan,hannespetur/SeqAnHTS,xenigmax/seqan,PF2-pasteur-fr/seqan,xenigmax/seqan,xp3i4/seqan,bestrauc/seqan,ktrappe/seqan,bestrauc/seqan,xp3i4/seqan,hannespetur/SeqAnHTS,xp3i4/seqan,xp3i4/seqan,xenigmax/seqan,PF2-pasteur-fr/seqan,bayolau/seqan,hannespetur/SeqAnHTS,ktrappe/seqan,xp3i4/seqan,PF2-pasteur-fr/seqan,xp3i4/seqan,JohnReid/seqan,JohnReid/seqan,bestrauc/seqan,bestrauc/seqan,budach/seqan,ktrappe/seqan,catkira/seqan,PF2-pasteur-fr/seqan,hannespetur/SeqAnHTS,bayolau/seqan