update README with Rust 1.31

diff --git a/README.md b/README.md
index a6195237f4338ef9d36c86b24dfbab6d817f2cec..0b7203d2c5d52cbc8e315765a92baa89fa1a06eb 100644 (file)
--- a/README.md
+++ b/README.md
@@ -19,8 +19,7 @@ Work on the Rust Analyzer is sponsored by
 
 ## Quick Start
 
-Rust analyzer builds on Rust >= 1.30.0 (currently in beta) and uses
-the 2018 edition.
+Rust analyzer builds on Rust >= 1.31.0 and uses the 2018 edition.
 
 ```
 # run tests