Merge pull request #322 from oslc-op/jra-add-sysml

Added SysML v2 specification

content/specifications/_index.md

@@ -39,6 +39,8 @@ Note: The open-services.net specifications that are being migrated to OASIS by t
 | [Performance Monitoring 2.0 Final](https://archive.open-services.net/wiki/performance-monitoring/OSLC-Performance-Monitoring-Specification-Version-2.0/index.html) | OSLC Performance Monitoring WG (closed) | Defines the OSLC services and vocabulary for the Performance Monitoring domain. |
 | [PROMCODE 1.0 OS](https://docs.oasis-open.org/oslc-promcode/promcode/v1.0/os/promcode-spec.html) | OSLC PROMCODE TC | PROject Management of COntracted DElivery approach based on OSLC. OASIS Standard. |
 | [Link Discovery Management 1.0 PSD](https://docs.oasis-open-projects.org/oslc-op/ldm/v1.0/psd01/link-discovery-management-spec.html) |**OSLC Open Project**  | OSLC REST services for an application to discover incoming links owned by some other application. |
+| [Systems Modeling Language 2.0 PSD](https://docs.oasis-open-projects.org/oslc-op/sysml/v2.0/psd01/sysml-spec.html) |**OSLC Open Project**  | This specification defines the OSLC Systems Modeling Language domain, a RESTful web
+services interface for the OMG Systems Modeling Language Version 2.0. |
 
 ## Working Drafts