Added R&R for Indre & I

Why is this change being made?

Roles & responsibilities for Indre & I were missing from the MPM handbook page. Now it's clearer for all teams what each one of us is working on.

Does this MR meet the acceptance criteria?

Assign to DRI

• Did you assign this change to the correct DRI of the page or information you are changing?

Conformity

• Added description to this MR explaining the reasons for the proposed change, per say-why-not-just-what