Rollup merge of rust-lang#144811 - jieyouxu:target-maintainer-docs, r=Noratrieb

Stylize `*-lynxos178-*` target maintainer handle to make it easier to copy/paste

Apparently I forgot to submit this branch I had lying around.

Noticed while reviewing Tier 3 target platform support pages. In the same style as rust-lang#139028.

Author: Zalathar

src/doc/rustc/src/platform-support/lynxos178.md

@@ -15,7 +15,7 @@ Target triples available:
 
 ## Target maintainers
 
-- Renat Fatykhov, https://github.com/rfatykhov-lynx
+[@rfatykhov-lynx](https://github.com/rfatykhov-lynx)
 
 ## Requirements