Update text/0000-project-groups.md

Co-Authored-By: Mark Rousskov <mark.simulacrum@gmail.com>

Author: XAMPPRocky

text/0000-project-groups.md

@@ -135,8 +135,8 @@ Examples of project groups around specific feature  include [FFI Unwind],
 [Inline ASM], and [Safe Transmute]. Examples built around continual work and
 maintenance would include [Triage], and [Rustup].
 
-The goal of a project is build a community or formalise and existing community
-around a particular feature or project in the in the organisation, and use this
+The goal of a project is build a community or formalise an existing community
+around a particular feature or project in the organisation, and use this
 space to discuss and iterate on that feature.
 
 Part of building a community is removing some of the institutional memory that