Add docs on ungoogled-software/contrib

README.md

@@ -152,6 +152,7 @@ List of mirrors:
 
 * For reporting and contacting, see [SUPPORT.md](SUPPORT.md)
 * For contributing (e.g. how to help, submitting changes, criteria for new features), see [docs/contributing.md](docs/contributing.md)
+* If you have some small contributions that don't fit our criteria, consider adding them to [ungoogled-software/contrib](https://github.com/ungoogled-software/contrib) or [our Wiki](https://github.com/ungoogled-software/ungoogled-chromium-wiki) instead.
 
 ## Credits
 

docs/contributing.md

@@ -1,13 +1,17 @@
 # Contributing
 
-Subsections of this section:
+This document contains our criteria and guidelines for contributing to ungoogled-chromium.
+
+If you have **small contributions that don't fit our criteria**, consider adding them to [ungoogled-software/contrib](https://github.com/ungoogled-software/contrib) or [our Wiki](https://github.com/ungoogled-software/ungoogled-chromium-wiki) instead.
+
+If you are a developer of an **officially-supported platform**, be sure to check out the [Platform Repository Standards and Guidelines](repo_management.md).
+
+List of contents:
 
 * [How to help](#how-to-help)
 * [Submitting changes](#submitting-changes)
 * [Criteria for new features](#criteria-for-new-features)
 
-If you are a developer of an officially-supported platform, be sure to check out the [Platform Repository Standards and Guidelines](repo_management.md).
-
 ### How to help
 
 Generally, ungoogled-chromium needs contributors to help: