List Paired Onboarding Sprint pattern in README

Author: rrrutledge

README.md

@@ -100,6 +100,7 @@ Our mission
 * [Centralized InnerSource Repository Governance](patterns/1-initial/centralized-repository-governance.md) - *InnerSource repositories lose contributor readiness when project hygiene drifts across teams. A central governance repository defines readiness checks as policy-as-code and runs automated audits that help Trusted Committers and repository maintainers keep projects discoverable, understandable, and contribution-ready without removing local ownership.*
 * [InnerSource as a Career Booster](patterns/1-initial/innersource-as-career-booster.md) - *Many employees wonder how contributing to InnerSource projects benefits their careers beyond their immediate team objectives. By engaging in InnerSource, individuals expand their skills, grow their network, increase visibility across the organization, and unlock new career opportunities.*
 * [Migrating from InnerSource to Open Source](patterns/1-initial/migrating-from-innersource-to-open-source.md) - *When an InnerSource project succeeds internally and meets criteria for external release, organizations often lack a structured approach for the transition. Establish a process that addresses legal, security, governance, and community readiness to transition the project to open source while maintaining its internal value.*
+* [Paired Onboarding Sprint](patterns/1-initial/paired-onboarding-sprint.md) - *Potential contributors who already depend on a shared project often stall before their first contribution - not for lack of ability, but because starting feels too costly to attempt alone. Pair a high-value potential contributor with a host-team engineer for a dedicated, bounded sprint to make their first real contribution together.*
 
 <!--
 NOTE: The 'Initial' Patterns below don't have a Patlet yet, which is essential for readers to quickly browse our patterns.