Capitalize "r" in "Code reviews" to be consistent with other headings.

Chronicle Team · copybara-github · commit ff4473d999fa · 2020-11-11T10:45:20.000-08:00
PiperOrigin-RevId: 341861788
diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
@@ -15,7 +15,7 @@ You generally only need to submit a CLA once, so if you've already submitted one
 (even if it was for a different project), you probably don't need to do it
 again.
 
-## Code reviews
+## Code Reviews
 
 All submissions, including submissions by project members, require review. We
 use GitHub pull requests for this purpose. Consult
