docs(rust): fix toolchain install instructions
@@ -21,7 +21,7 @@ setup the `stable` and `nightly` rust toolchains:
```
rustup toolchain install stable
-rustup toolchain install stable
+rustup toolchain install nightly
```
Refer Rust [documentation][rustup-manage-versions] on managing and
@@ -29,7 +29,8 @@ updating rust versions.
## Test
-Once you make some changes and write some tests, you can run the test:
+Once you make some changes in a crate and write some tests, you can run them
+with:
```
cargo test
