Update MiMa settings

Author: steinybot

README.md

@@ -33,7 +33,7 @@ For most use cases you should add Scala2PlantUML as a global plugin since your b
 Create `~/.sbt/1.0/plugins/scala2PlantUML.sbt` containing:
 
 ```text
-addSbtPlugin("nz.co.bottech" % "sbt-scala2plantuml" % "0.0.0+68-e3997b1f+20210305-1242-SNAPSHOT")
+addSbtPlugin("nz.co.bottech" % "sbt-scala2plantuml" % "0.1.0")
 ```
 
 ## CLI
@@ -49,7 +49,7 @@ cs install --channel https://git.io/Jqv1i scala2plantuml
 ### Usage
 
 ```text
-Scala2PlantUML version 0.0.0+68-e3997b1f+20210305-1242-SNAPSHOT
+Scala2PlantUML version 0.1.0
 Usage: scala2plantuml [options] symbol
 
 Scala2PlantUML generates PlantUML Class Diagrams from Scala SemanticDB files.

build.sbt

@@ -84,6 +84,8 @@ inThisBuild(
 
 val commonProjectSettings = List(
   isScala213 := isScala213Setting.value,
+  // TODO: Remove this after the first release.
+  mimaFailOnNoPrevious := false,
   mimaPreviousArtifacts := previousStableVersion.value.map(organization.value %% moduleName.value % _).toSet,
   scalastyleFailOnError := true,
   scalastyleFailOnWarning := true,
@@ -193,7 +195,7 @@ lazy val docs = (project in file("doc-templates"))
     },
     mdocOut := (ThisBuild / baseDirectory).value,
     mdocVariables := Map(
-      "VERSION" -> version.value
+      "VERSION" -> previousStableVersion.value.getOrElse(version.value)
     ),
     unusedCompileDependenciesFilter -= new ModuleFilter {