index: add short mention to governance model

Author: Pablo Correa Gómez

content/_index.md

@@ -48,6 +48,12 @@ To engage with specific content please file issues and / or PRs directly to the
 
 To stay up to date on the group's activities there's also a Twitter account you can follow: [uapi-group](https://twitter.com/uapi_group).
 
+## Governance
+
+The UAPI-group and its specifications are governed in similar ways than the free-software projects they serve.
+Every maintainer has the right to merge to all the repositories, and might do so under the assumption that they hold the expertise needed to do so.
+Everybody is welcomed to contribute, and if contributions become regular and call the attention of the maintainer team, people might be invited to join.
+
 ## UAPI Group Specifications
 
 Submitted specifications are available at https://uapi-group.org/specifications.