Add some basic docs on using logstash
Add some basic docs on using logstash

ninoabbate/opsweekly,ninoabbate/opsweekly,etsy/opsweekly,KevinMGranger/opsweekly,afolson/opsweekly,KevinMGranger/opsweekly,initrd/opsweekly,initrd/opsweekly,MessageSystems/opsweekly,etsy/opsweekly,MessageSystems/opsweekly,afolson/opsweekly