Document testQuick in welcome screen

README.md

@@ -28,6 +28,7 @@ See https://pekko.apache.org for the documentation including the API docs. The d
 - `sbt compile` compiles the main source for project default version of Scala (2.13)
     - `sbt +compile` will compile for all supported versions of Scala
 - `sbt test` will compile the code and run the unit tests
+- `sbt testQuick` similar to test but when repeated in shell mode will only run failing tests
 - `sbt package` will build the jars
     - the jars will built into target dirs of the various modules
     - for the the 'actor' module, the jar will be built to `actor/target/scala-2.13/`

project/PekkoBuild.scala

@@ -286,8 +286,12 @@ object PekkoBuild {
       logoColor := scala.Console.BLUE,
       usefulTasks := Seq(
         UsefulTask("", "compile", "Compile the current project"),
-        UsefulTask("", "test", "Run all the tests "),
+        UsefulTask("", "test", "Run all the tests"),
+        UsefulTask("", "testQuick",
+          "Runs all the tests. When run multiple times will only run previously failing tests (shell mode only)"),
         UsefulTask("", "testOnly *.AnySpec", "Only run a selected test"),
+        UsefulTask("", "testQuick *.AnySpec",
+          "Only run a selected test. When run multiple times will only run previously failing tests (shell mode only)"),
         UsefulTask("", "publishLocal", "Publish current snapshot version to local ~/.ivy2 repo"),
         UsefulTask("", "verifyCodeStyle", "Verify code style"),
         UsefulTask("", "applyCodeStyle", "Apply code style"),