Make it clear that scalajs-dom supports Scala.js 1.0.0+.

Author: sjrd

readme/Index.scalatex

@@ -58,7 +58,7 @@
       libraryDependencies += "org.scala-js" %%% "scalajs-dom" % "0.9.8"
 
     @p
-      then enjoy the types available in @hl.scala{org.scalajs.dom}. scalajs-dom 0.9.8 is built and published for Scala.js 0.6.17 and later, Scala.js 1.0.0-M8 and 1.0.0-RC1, with Scala 2.10, 2.11, 2.12 and 2.13. It will also most likely be published as is for further versions of Scala.js 1.x in the future.
+      then enjoy the types available in @hl.scala{org.scalajs.dom}. scalajs-dom 0.9.8 is built and published for Scala.js 0.6.17+ and Scala.js 1.0.0+, with Scala 2.10, 2.11, 2.12 and 2.13.
 
     @p
       To begin with, @code{scala-js-dom} organizes the full-list of DOM APIs into a number of buckets: