message: add title
diff: +# Working Groups
  +
  As described in the ONNX [governance](https://github.com/onnx/onnx/tree/master/community#wg---working-groups), Working Groups (WGs) are temporary groups formed to address issues that cross SIG boundaries. Working Groups have a have a clear goal measured through specific deliverables and disband after the goal is achieved. Working groups do not own artifacts long term; they create specifications, recommendations, and/or code implementations for submission to the relevant SIGs for approval and acceptance.
  ## Proposing a new working group
  