Update README

apple-llvm-split-commit: e228fa8e31b9494c857cb52f5537a74cd2ce5711
apple-llvm-split-dir: -

Author: hyp

README.md

@@ -4,7 +4,8 @@ The [llvm-monorepo-root](https://github.com/apple/llvm-monorepo-root),
 [llvm-project-v1](https://github.com/apple/llvm-project-v1), and
 [llvm-project-v1-split](https://github.com/apple/llvm-project-v1-split) repositories are
 WIP repositories that are used for development and prototyping of an llvm-project monorepo
-for Swift. Please see [this forum post](https://forums.swift.org/t/llvm-monorepo-transition/25689)
+that will be used for Apple's compiler releases and for the open source Swift project.
+Please see [this forum post](https://forums.swift.org/t/llvm-monorepo-transition/25689)
 for more details.
 
 Original readme follows: