Fix Scalatex after update

Author: MateuszKubuszok

catnip.sbt

@@ -47,11 +47,11 @@ lazy val readme = scalatex.ScalatexReadme(
   .noPublish
   .enablePlugins(GhpagesPlugin)
   .settings(
+    scalaVersion := "2.12.11", // there is no ScalaTex for 2.13
     siteSourceDirectory := target.value / "scalatex",
     git.remoteRepo := "[email protected]:scalalandio/catnip.git",
     Jekyll / makeSite / includeFilter := new FileFilter { def accept(p: File) = true }
   )
 
 addCommandAlias("fullTest", ";test;scalastyle")
 addCommandAlias("fullCoverageTest", ";coverage;test;coverageReport;coverageAggregate;scalastyle")
-addCommandAlias("relock", ";unlock;reload;update;lock")