Typo fix

Author: joshtriplett

posts/inside-rust/2020-05-25-new-inline-asm.md

@@ -34,7 +34,7 @@ compiler implementation:
 - The proposal first started as a [pre-RFC on
   internals](https://internals.rust-lang.org/t/pre-rfc-2-inline-assembly/11310).
 - Inline assembly became one of the language team's first [project
-  group](https://github.com/rust-lang/rfcs/blob/master/text/2836-project-asm.md),
+  groups](https://github.com/rust-lang/rfcs/blob/master/text/2836-project-asm.md),
   and iteratively designed RFCs in [the project group
   repository](https://github.com/rust-lang/project-inline-asm/).
 - [RFC 2873](https://github.com/rust-lang/rfcs/pull/2873) (still under