Merge pull request #278 from xuwei-k/patch-1

add wartremover

Author: SethTisue

projects-2.13.md

@@ -51,7 +51,7 @@ Most plugins do not need to be re-published for 2.13, but certain plugins did re
 
 Add using `addSbtPlugin(...)`:
 
-    (coming soon)
+    "org.wartremover"                   % "sbt-wartremover"           % "2.3.5"
 
 ### Pending