Changed convention for newest Jackson version

README.md

@@ -9,9 +9,8 @@ This project provides support for using [Jackson][jackson] for JSON parsing and
 [circe][circe], a Scala library for encoding and decoding JSON to Scala types.
 
 Several versions of Jackson are still in widespread use, and `io.circe.jackson` is cross-published
-for 2.5, 2.6, 2.7, and 2.8. The artifact supporting the most recent Jackson version is always named
-`circe-jackson`, while older versions have a two digit suffix on the artifact name
-(`circe-jackson25`, `circe-jackson26`, etc.).
+with support for Jackson 2.5, 2.6, 2.7, and 2.8. Each module has a two-digit suffix indicating its
+Jackson version (`circe-jackson28` supports Jackson 2.8, etc.).
 
 The project source is mostly shared, with version-specific code in separate source trees. Note that
 the source supporting Jackson 2.6 and 2.7 is identical, so these version share a source tree.

build.sbt

@@ -93,7 +93,7 @@ lazy val jackson27 = project.in(file("27"))
 lazy val jackson28 = project.in(file("28"))
   .settings(allSettings)
   .settings(
-    moduleName := "circe-jackson",
+    moduleName := "circe-jackson28",
     libraryDependencies ++= jacksonDependencies("2.8.5"),
     docMappingsApiDir := "api",
     addMappingsToSiteDir(mappings in (Compile, packageDoc), docMappingsApiDir),