Merge pull request #740 from sjrd/mention-tasty-mima

Author: SethTisue

README.md

@@ -15,7 +15,7 @@ consequence of modifications in classes/members signature.
 
 MiMa compares all classfiles of two released libraries and reports all source
 of incompatibilities that may lead to a linkage error. MiMa provides you, the
-library maintainer, with a tool that can greatly automates and simplifies the
+library maintainer, with a tool that can greatly automate and simplify the
 process of ensuring the release-to-release binary compatibility of your
 libraries.
 
@@ -35,6 +35,17 @@ Java language binary compatibility does not imply source compatibility as well.
 MiMa focuses on binary compatibility and currently provides no insight into
 source compatibility.
 
+### See also: TASTy-MiMa
+
+For Scala 3, in addition to binary compatible, TASTy compatibility becomes
+increasingly important. Another tool,
+[TASTy-MiMa](https://github.com/scalacenter/tasty-mima), is designed to
+automatically check TASTy compatibility in much the same way that MiMa checks
+binary compatibility.
+
+Keep in mind that TASTy-MiMa is still young, as of early 2023. It is likely to
+contain bugs.
+
 ## Usage
 
 MiMa's sbt plugin supports sbt 1.x only.  (Use v0.3.0 for sbt 0.13.x.)