Recommend sbt-scalafmt 0.6.6 instead of 0.6.8
Recommend sbt-scalafmt 0.6.6 instead of 0.6.8

olafurpg/scalafmt,scalameta/scalafmt,scalameta/scalafmt,olafurpg/scalafmt,olafurpg/scalafmt,olafurpg/scalafmt,scalameta/scalafmt,scalameta/scalafmt