* Dev by saggu in https://github.com/usc-isi-i2/kgtk/pull/549
* Created community-detection command and its readme file by GrantXie in https://github.com/usc-isi-i2/kgtk/pull/580
* Added distance column to reachable_nodes by GrantXie in https://github.com/usc-isi-i2/kgtk/pull/581
* Community Detection command (accidentally deleted from previous PR) by GrantXie in https://github.com/usc-isi-i2/kgtk/pull/586