Add GitHub usage and perspective (#528)

Add GitHub usage and perspective

Author: zkoppert

patterns/1-initial/modular-code.md

@@ -62,6 +62,7 @@ and therefore promotes external contributions and onboarding of newcomers.
   1. Develop automated testing protection.
   1. Document usage of modules.
   1. Introduce semantic versioning.
+  1. Committing to not breaking backwards compatibility.
   1. Use a dependency management software such as pip, nuget, npm.
 * More information and techniques are available from the book *[Working Effectively with Legacy Code](https://www.oreilly.com/library/view/working-effectively-with/0131177052/)* by Michael Feathers and *[Refactoring: Improving the Design of Existing Code](https://martinfowler.com/books/refactoring.html)* by Martin Fowler.
 
@@ -72,10 +73,13 @@ and therefore promotes external contributions and onboarding of newcomers.
 * Modular code helps Agile: For the same functionality, you'll need to change more bits, but the modularity helps to materialize sooner (earlier and more reliable validations) and to prioritize the most relevant bits (separate value from waste).
 * Modular efforts increase autonomy and accountability for Engineers, which can raise satisfaction and quality.
 * Modular code makes the pathway to InnerSource and open source smoother.
+* Modular code gets used more often, and that diverse set of users often leads to higher quality code.
 
 ## Known Instances
 
-Elements of the resolution have been proven by various companies.
+Elements of the resolution have been proven by various companies such as
+
+- GitHub
 
 ## Status