improve comments in shell component example
improve comments in shell component example

hmcc/storm,dadarom/flux,F30/storm,kishorvpatil/incubator-storm,hmcc/storm,hmcl/storm-apache,srishtyagrawal/storm,carl34/storm,adityasharad/storm,srdo/storm,hmcc/storm,kevpeek/storm,pczb/storm,kevinconaway/storm,pczb/storm,knusbaum/incubator-storm,sakanaou/storm,kevpeek/storm,raviperi/storm,knusbaum/incubator-storm,kevinconaway/storm,ujfjhz/storm,hmcl/storm-apache,carl34/storm,ptgoetz/flux,Crim/storm,adityasharad/storm,hmcl/storm-apache,kishorvpatil/incubator-storm,F30/storm,hmcl/storm-apache,raviperi/storm,erikdw/storm,pczb/storm,sakanaou/storm,erikdw/storm,kishorvpatil/incubator-storm,hmcl/storm-apache,cluo512/storm,0x726d77/storm,kevinconaway/storm,F30/storm,srishtyagrawal/storm,srishtyagrawal/storm,pczb/storm,ujfjhz/storm,erikdw/storm,hmcl/storm-apache,0x726d77/storm,roshannaik/storm,ujfjhz/storm,kevinconaway/storm,carl34/storm,cluo512/storm,ujfjhz/storm,0x726d77/storm,hmcc/storm,srdo/storm,kevpeek/storm,kamleshbhatt/storm,Crim/storm,srishtyagrawal/storm,carl34/storm,F30/storm,kevinconaway/storm,roshannaik/storm,roshannaik/storm,sakanaou/storm,roshannaik/storm,knusbaum/incubator-storm,raviperi/storm,sakanaou/storm,adityasharad/storm,roshannaik/storm,sakanaou/storm,raviperi/storm,knusbaum/incubator-storm,srdo/storm,srdo/storm,roshannaik/storm,srdo/storm,kishorvpatil/incubator-storm,kevpeek/storm,srishtyagrawal/storm,Crim/storm,erikdw/storm,pczb/storm,raviperi/storm,cluo512/storm,kamleshbhatt/storm,hmcl/storm-apache,adityasharad/storm,ptgoetz/flux,srishtyagrawal/storm,ujfjhz/storm,kevpeek/storm,kevpeek/storm,kamleshbhatt/storm,Crim/storm,srishtyagrawal/storm,knusbaum/incubator-storm,knusbaum/incubator-storm,kevinconaway/storm,cluo512/storm,ujfjhz/storm,erikdw/storm,Crim/storm,erikdw/storm,F30/storm,knusbaum/incubator-storm,0x726d77/storm,kamleshbhatt/storm,kevinconaway/storm,raviperi/storm,0x726d77/storm,0x726d77/storm,Crim/storm,roshannaik/storm,hmcc/storm,carl34/storm,sakanaou/storm,dadarom/flux,ptgoetz/flux,srdo/storm,erikdw/storm,sakanaou/storm,kishorvpatil/incubator-storm,adityasharad/storm,kishorvpatil/incubator-storm,pczb/storm,carl34/storm,adityasharad/storm,kamleshbhatt/storm,dadarom/flux,carl34/storm,adityasharad/storm,raviperi/storm,ujfjhz/storm,F30/storm,hmcc/storm,cluo512/storm,kamleshbhatt/storm,cluo512/storm,kishorvpatil/incubator-storm,cluo512/storm,pczb/storm,kevpeek/storm,srdo/storm,0x726d77/storm,hmcc/storm,Crim/storm,F30/storm,kamleshbhatt/storm