Clarify usage of logspout extension
Clarify usage of logspout extension

ref #148

dkirrane/docker-elk,binqsoft/NeXlog2elk,binqsoft/NeXlog2elk,deviantony/docker-elk,binqsoft/NeXlog2elk,dkirrane/docker-elk,binqsoft/NeXlog2elk,laidig/docker-elk,newcontext/so-mvp-docker-elk,laidig/docker-elk,deviantony/docker-elk,newcontext/so-mvp-docker-elk,binqsoft/NeXlog2elk