removing link to non-existent pattern 'Donut 8: Not Invented Here'

Author: spier

README.md

@@ -71,7 +71,6 @@ possible to either deploy the same service in independent environments with sepa
 * [How to Defeat the Hierarchical Constraints](patterns/1-initial/defeat-hierarchical-constraints.md)
 * [Project Management Time Pressures](https://github.com/InnerSourceCommons/InnerSourcePatterns/pull/47)
 * [Organizational Mindset Change](patterns/1-initial/organizational-mindset-change.md)
-* [Donut 8: Not Invented Here](https://github.com/InnerSourceCommons/innersourcecommons.org/wiki/Donut-8:-Not-invented-here)
 * [Bad Weather For Liftoff](patterns/1-initial/bad-weather-for-liftoff.md)
 * [Get Contributions Despite Silo Thinking](https://github.com/InnerSourceCommons/InnerSourcePatterns/pull/38)