Updated README for dotty goodness

README.md

@@ -15,10 +15,10 @@ Toss that at the top of any files which need to work with APIs written in terms
 Add the following to your SBT configuration:
 
 ```sbt
-libraryDependencies += "com.codecommit" %% "shims" % "<version>"
+libraryDependencies += "com.codecommit" %%% "shims" % "<version>"
 ```
 
-If you're using scala.js, use `%%%` instead.  Cross-builds are available for Scala 2.11, 2.12, and 2.13.  It is *strongly* recommended that you enable the relevant SI-2712 fix in your build if using 2.11 or 2.12.  [Details here](https://github.com/typelevel/cats/tree/b23c7fbc117856910fa43de205457d8637eef8c6#getting-started).  A large number of conversions will simply *not work* without partial unification.
+Cross-builds are available for Scala 2.12 and 2.13, and Dotty 0.25.0 and 0.26.0-RC1. ScalaJS builds target the 1.x line.  It is *strongly* recommended that you enable the relevant SI-2712 fix in your build if using 2.12.  [Details here](https://github.com/typelevel/cats/tree/b23c7fbc117856910fa43de205457d8637eef8c6#getting-started).  A large number of conversions will simply *not work* without partial unification.
 
 Note that shims generally follows `epoch.major.minor` versioning schemes, meaning that changes in the second component may be breaking. This is mostly because maintaining strict semver with shims would be *immensely* difficult due to the way the conversions interact. Shims is more of a leaf-level project, anyway, so semantic versioning is somewhat less critical here. Feel free to open an issue and make your case if you disagree, though.