fixup! doc: Update for Rust libraries

doc/doxygen/src/using-rust.md

@@ -89,15 +89,15 @@ They always depend on the `rust_riotmodules` module / crate,
 which collects all enabled modules into a single crate by means of optional features.
 
 If the application is not written in Rust,
-it further depends on `rust_riotmodules_standalone`,
+that then depends on `rust_riotmodules_standalone`,
 which adds a panic handler and serves as a root crate.
 
 If the application is written in Rust,
 `rust_riotmodules` needs to be added as a dependency of the application.
 (This helps deduplicate between application and library code,
 and also avoids symbol name clashes).
-This is done by adding a dependency on the local `rust_riotmodules_standalone` crate (which is a no-op when no such modules are enabled),
-and placing an `extern crate rust_riotmodules_standalone;` statement in the code.
+This is done by adding a dependency on the local `rust_riotmodules` crate (which is a no-op when no such modules are enabled),
+and placing an `extern crate rust_riotmodules;` statement in the code.
 (The latter is needed even after most `extern crate` was abolished in 2018,
 because crates depended on but not used otherwise are usually not linked in).