mention used code style

PiperOrigin-RevId: 552464836
google · Aug 2, 2023 · 9ede771 · 9ede771
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diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
@@ -21,6 +21,11 @@ frustration later on.
 All submissions, including submissions by project members, require review. We
 use Github pull requests for this purpose.
 
+### Code style
+Code should follow applicable formatting and style guides described in
+[Google Style Guides](https://google.github.io/styleguide/). C code should be
+C89 compatible.
+
 ### The small print
 Contributions made by corporations are covered by a different agreement than
 the one above, the [Software Grant and Corporate Contributor License Agreement]