Update MODULE.bazel section in styleguide
diff --git a/.gemini/styleguide.md b/.gemini/styleguide.md
index 56352a2..d6d573c 100644
--- a/.gemini/styleguide.md
+++ b/.gemini/styleguide.md
@@ -56,6 +56,7 @@
### MODULE.bazel
- The MODULE.bazel file may contain overrides (e.g. `archive_override`, `git_override`, `local_path_override`). Those will be ignored when the module is used as a dependency, so they are allowed and you can ignore reviewing them.
+- The MODULE.bazel file may contain dev dependencies specified with `dev_dependency = True`. Dev dependencies are ignored when the module is used as a dependency, so they are allowed and you can ignore reviewing them.
- There could be symlinks under `overlay/` directory that points to a `MODULE.bazel` file in the parent directory. The content of the symlink will look like a text file `../MODULE.bazel`, these are allowed and should be ignored.
---
