add some more usage info for multi-module projects
add some more usage info for multi-module projects
sbt/sbt,sbt/sbt,sbt/sbt,xuwei-k/xsbt,mdedetrich/sbt,xuwei-k/xsbt,sbt/sbt,mdedetrich/sbt,mdedetrich/sbt,mdedetrich/sbt,jrudolph/sbt-dependency-graph,mdedetrich/sbt,mdedetrich/sbt,xuwei-k/xsbt,sbt/sbt,mdedetrich/sbt,xuwei-k/xsbt,xuwei-k/xsbt,sbt/sbt,sbt/sbt