Update developers/contributing/index.qmd

Co-authored-by: Penelope Yong <[email protected]>

Author: AoifeHughes

developers/contributing/index.qmd

@@ -55,7 +55,7 @@ Turing uses [JuliaFormatter.jl](https://github.com/domluna/JuliaFormatter.jl) to
 
 #### Installing JuliaFormatter
 
-We use version 1 of JuliaFormatter. Install it in your **global Julia environment** (not the project environment, as adding it to the Project.toml would make it invalid):
+We use version 1 of JuliaFormatter. Install it in your **global Julia environment** (not the project environment, as adding it to the `Project.toml` would make it an invalid dependency of the project):
 
 ```julia
 julia -e 'using Pkg; Pkg.add(name="JuliaFormatter", version="1"); Pkg.pin("JuliaFormatter")'