Create security_baseline_sandbox_stage.md

Signed-off-by: Dana Wang <[email protected]>

process/sig-lifecycle-documents/security_baseline_sandbox_stage.md

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+## Creation of a new Special Interest Group (SIG) at Sandbox stage
+
+### Proposed focus, intent, goals, and/or deliverables
+
+The goal of this SIG is to evolve [OpenSSF security baseline](https://github.com/ossf/tac/blob/a90b9838739ac18df43197fdd89f045c1a1e4dc3/process/security_baseline.md) for Linux Foundation wide adoption.
+
+### List SIG Lead(s)
+The SIG must have a minimum of 1 Lead
+  * Eddie Knight, OpenSSF Security Insights lead, Sonatype, GitHub ID: eddie-knight
+  * Michael Lieberman, OpenSSF GUAC lead, Kusari, GitHub ID: mlieberman85
+
+### List of interested individuals
+The SIG have a minimum of 3 members with 2 different organizational affiliations.
+  * Adolfo "Puerco" García Veytia, CNCF kubernetes SIG Release Technical Lead, OpenSSF Protobom, OpenVEX maintainer, Staklock, GitHub ID: puerco
+  * Justin Cappos, CNCG TUF, in-toto, Uptane, OpenSSF gittuf maintainer, New York University.  GitHUb ID: JustinCappos
+  * David Wheeler, OpenSSF Best Practice Badge maintainer, OpenSSF, GitHub ID: david-a-wheeler
+  * Dana Wang, OpenSSF security baseline maintainer, OpenSSF, GitHub ID: danajoyluck
+
+### Governing Body
+SIGs may report to an existing OpenSSF Working Group or directly to the TAC as their governing body. The SIG commits to providing the governing body quarterly updates on progress.
+  * Security Best Practices Working Group
+
+### SIG References
+The SIG should provide a list of existing resources with links to the repository, and if available, website, a roadmap, demos and walkthroughs, and any other material to showcase the existing breadth, maturity, and direction of the SIG.
+| Reference           | URL |
+|---------------------|-----|
+| Repo                |     |
+| Meeting Agenda      |     |
+| OSSF Calendar Entry |     |
+| Website             |     |
+| Security.md         |     |
+| Roadmap             |     |
+| code-of-conduct.md  |     |
+| Demos               |     |
+| Other               |   [OpenSSF security baseline](https://github.com/ossf/tac/blob/a90b9838739ac18df43197fdd89f045c1a1e4dc3/process/security_baseline.md)   |