Update styleguide for metadata.json changes
diff --git a/.gemini/styleguide.md b/.gemini/styleguide.md
index d6d573c..11b4af3 100644
--- a/.gemini/styleguide.md
+++ b/.gemini/styleguide.md
@@ -51,7 +51,7 @@
 
 ### Metadata
 
-- If there are any changes to `maintainers` or `repository` fields in `metadata.json` files, please ping @bazelbuild/bcr-maintainers for a manual review.
+- If there are any non-trivial changes (e.g. reforammting) to `maintainers` or `repository` fields in `metadata.json` files, please ping @bazelbuild/bcr-maintainers for a manual review.
 
 ### MODULE.bazel