Merge pull request #41 from mblink/update/sbt-mdoc-2.8.1

Update sbt-mdoc to 2.8.1

Author: mrdziuban

project/plugins.sbt

@@ -5,5 +5,5 @@ addSbtPlugin("org.portable-scala" % "sbt-scalajs-crossproject" % "1.3.2")
 addSbtPlugin("org.portable-scala" % "sbt-scala-native-crossproject" % "1.3.2")
 addSbtPlugin("org.scala-js" % "sbt-scalajs" % "1.20.1")
 addSbtPlugin("org.scala-native" % "sbt-scala-native" % "0.5.9")
-addSbtPlugin("org.scalameta" % "sbt-mdoc" % "2.8.0")
+addSbtPlugin("org.scalameta" % "sbt-mdoc" % "2.8.1")
 addSbtPlugin("com.frugalmechanic" % "fm-sbt-s3-resolver" % "0.23.0")