Add publishLocal hint to build.sbt, fix comment in .scala-steward.conf

.scala-steward.conf

@@ -1,7 +1,7 @@
+# add try-chimney to defaults from https://github.com/scala-steward-org/scala-steward/blob/main/docs/repo-specific-configuration.md
+updates.fileExtensions = [".mill-version",".sbt",".sbt.shared",".sc",".scala",".scalafmt.conf",".yml","build.properties","mill-version","pom.xml","try-chimney.sh"]
+
 updates.pin = [
-  # Use Scala 3 LTE
+  # Use Scala 3 LTS, ignore Scala 3 Next releases
   { groupId = "org.scala-lang", artifactId="scala3-library", version="3.3." }
 ]
-
-# add try-chimney to defaults from https://github.com/scala-steward-org/scala-steward/blob/main/docs/repo-specific-configuration.md
-updates.fileExtensions = [".mill-version",".sbt",".sbt.shared",".sc",".scala",".scalafmt.conf",".yml","build.properties","mill-version","pom.xml","try-chimney.sh"]

build.sbt

@@ -2,6 +2,8 @@ import com.jsuereth.sbtpgp.PgpKeys.publishSigned
 import com.typesafe.tools.mima.core.{Problem, ProblemFilters}
 import commandmatrix.extra.*
 
+// Used to configure the build so that it would format on compile during development
+// but not on CI.
 lazy val isCI = sys.env.get("CI").contains("true")
 ThisBuild / scalafmtOnCompile := !isCI
 
@@ -325,7 +327,14 @@ lazy val root = project
          | - Scala 2.13 adds no suffix to a project name seen in build.sbt
          | - Scala 3 adds the suffix "3" to a project name seen in build.sbt
          |
-         |When working with IntelliJ or Scala Metals, edit "val ideScala = ..." and "val idePlatform = ..." within "val versions" in build.sbt to control which Scala version you're currently working with.""".stripMargin,
+         |When working with IntelliJ or Scala Metals, edit "val ideScala = ..." and "val idePlatform = ..." within "val versions" in build.sbt to control which Scala version you're currently working with.
+         |
+         |If you need to test library locally in a different project, restart sbt with "RELEASE=true sbt". Then publishLocal:
+         | - chimney-macro-commons (obligatory)
+         | - chimney
+         | - cats/java-collections/protobufs integration (optional)
+         |for the right Scala version and platform (see projects task).
+         |""".stripMargin,
     usefulTasks := Seq(
       sbtwelcome.UsefulTask("projects", "List all projects generated by the build matrix").noAlias,
       sbtwelcome