updated sig life cycle

README.md

@@ -4,4 +4,15 @@ Welcome to the Spinnaker community!
 
 This is the starting point for joining and contributing to the Spinnaker community.
 
-To learn more about the project structure and organization, please refer to [Project Governance](https://www.spinnaker.io/community/governance/) information.
+### How the project works
+
+To learn more about the project structure and organization, please refer to the[Project's Governance](governance.md) information.
+
+### How to get involved
+
+Connect with us via:
+
+* [Slack](https://spinnakerteam.slack.com/)
+* [Community forum](https://community.spinnaker.io/)
+* [Stack Overflow](https://stackoverflow.com/questions/tagged/spinnaker)
+* [Twitter](https://twitter.com/spinnakerio)

governance.md

@@ -115,6 +115,5 @@ The steering committee is initially seeded by Netflix and Google as the project
 
 ## SIGS
 
-SIGs (special interest groups) are created as community interest and demand around particular topics become self evident, and continue on as their relevance and needs do. SIGs and their leads are ratified and greenlit by the [steering committee](#steering-committee).
+SIGs (special interest groups) are created as community interest and demand around particular topics become self evident, and continue on as their relevance and needs do. SIGs and their leads are ratified and green-lit by the steering committee via a [SIG proposal process](sig-lifecycle.md). 
 
-[See the SIG list here](/community/governance/sigs).

sig-lifecycle.md

@@ -1,3 +1,16 @@
-# SIG Lifecycle
+# SIG Life-cycle
+
+SIGs exist so members of the community can discuss some of Spinnaker’s core feature areas, and guide design in those areas.
+
+* SIGs are created as needed
+* Each SIG has one or more “leads”, who own the SIG’s agenda
+* Anyone can attend a SIG meeting
+
+Have a proposal for a SIG? It's easy! We ask that you create a PR within this repository; please include a README which provides: 
+
+* A description - what are the goals of the SIG? What's the scope of work? 
+* Proposed SIG Leads
+* Proposed Meeting Cadence
+
+The project's Steering Committee and Technical Oversight Committee will review the PR. The ultimate approval or rejection of the proposal is the responsibility of the Steering Committee. 
 
-_TODO: Process of proposing SIGs, etc_