fix cargo invocation in the readme

diff --git a/README.md b/README.md
index 5eb7b34425e6e9641b4da080e4b80156926283f8..5e5a7a23c6afe04441ab31b0b6d343c2b293d8fa 100644 (file)
--- a/README.md
+++ b/README.md
@@ -77,7 +77,7 @@ nightly).
 
 ## Running Miri on your own project('s test suite)
 
-Install Miri as a cargo subcommand with `cargo install +nightly --all-features
+Install Miri as a cargo subcommand with `cargo +nightly install --all-features
 --path .`.  Be aware that if you used `rustup override set` to fix a particular
 Rust version for the miri directory, that will *not* apply to your own project
 directory!  You have to use a consistent Rust version for building miri and your