Docs: Update version that version-named manifests works from (#56709)

Author: IanButterworth

doc/src/manual/code-loading.md

@@ -63,7 +63,7 @@ Each kind of environment defines these three maps differently, as detailed in th
 
 ### Project environments
 
-A project environment is determined by a directory containing a project file called `Project.toml`, and optionally a manifest file called `Manifest.toml`. These files may also be called `JuliaProject.toml` and `JuliaManifest.toml`, in which case `Project.toml` and `Manifest.toml` are ignored. This allows for coexistence with other tools that might consider files called `Project.toml` and `Manifest.toml` significant. For pure Julia projects, however, the names `Project.toml` and `Manifest.toml` are preferred. However, from Julia v1.11 onwards, `(Julia)Manifest-v{major}.{minor}.toml` is recognized as a format to make a given julia version use a specific manifest file i.e. in the same folder, a `Manifest-v1.11.toml` would be used by v1.11 and `Manifest.toml` by any other julia version.
+A project environment is determined by a directory containing a project file called `Project.toml`, and optionally a manifest file called `Manifest.toml`. These files may also be called `JuliaProject.toml` and `JuliaManifest.toml`, in which case `Project.toml` and `Manifest.toml` are ignored. This allows for coexistence with other tools that might consider files called `Project.toml` and `Manifest.toml` significant. For pure Julia projects, however, the names `Project.toml` and `Manifest.toml` are preferred. However, from Julia v1.10.8 onwards, `(Julia)Manifest-v{major}.{minor}.toml` is recognized as a format to make a given julia version use a specific manifest file i.e. in the same folder, a `Manifest-v1.11.toml` would be used by v1.11 and `Manifest.toml` by any other julia version.
 
 The roots, graph and paths maps of a project environment are defined as follows: