Add minimal version and document check/update

willingc · willingc · commit 3fce075cc30a · 2019-08-15T10:48:45.000+09:00
diff --git a/README.md b/README.md
@@ -16,6 +16,10 @@ A Python-3 (CPython >= 3.5.0) Interpreter written in Rust :snake: :scream:
 
 #### Check out our [online demo](https://rustpython.github.io/demo/) running on WebAssembly.
 
+RustPython requires Rust 1.36 or higher. 
+To check Rust version: `rustc --version` If you wish to update,
+`rustup update stable`.
+
 To test RustPython, do the following:
 
     $ git clone https://github.com/RustPython/RustPython
