Fix the blueprint link in OKR's

Why is this change being made?

While having a look at this page, I noticed the OKR Blueprint link is broken, adding the correct link back.

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