Update text/0096-remove-stacks-mixins.md

Signed-off-by: Ed Morley <501702+edmorley@users.noreply.github.com>

text/0096-remove-stacks-mixins.md

@@ -223,7 +223,7 @@ This is how we do it everywhere else, this is the way.
 
 Changes were made to the Docker label and `buildpack.toml` table names between when this RFC was written and the changes were made to the spec in [spec#365](https://github.com/buildpacks/spec/pull/365), which have now been backported to the RFC:
 
-- The `io.buildpacks.distributions.*` Docker labels were renamed to `io.buildpacks.base.distros.*`.
+- The `io.buildpacks.distributions.*` Docker labels were renamed to `io.buildpacks.base.distro.*`.
 - The `io.buildpacks.id` Docker label was renamed to `io.buildpacks.base.id`.
 - The `buildpack.toml` table `[[targets.distributions]]` was renamed to `[[targets.distros]]` and the `versions` field within it renamed to `version` (along with its type changing from an array to a string).