Datastores team metrics - iteration W04

1. Estimated hours of work assigned to the team, vs. their capacity: 276 / 288
2. Issues planned vs issues closed: 19 / 9
3. Issues Unplanned we got in the Milestone: 16
4. Estimated hours planned vs closed: 276 / 140
5. # issues moved to other iterations, due to inaccurate planning: 12 (approx)

[ time evolution graph to be placed here, when there is sufficient data ]

CC: @gitlab-com/gl-infra/sre-datastores, @brentnewton