Update local_tutorial.md (#464)
Update local_tutorial.md (#464)

* Changed docker-edge to docker.  docker for mac no longer has the docker-edge version.  Now, just need to have "docker".  
* changed "brew cask" command to "brew --cask", which is the newer syntax that works with brew.  "brew cask" is no longer supported.
apache/solr-operator,apache/solr-operator,apache/solr-operator