Add testimonial from Amsterdam

[Ainali]

On the page for Civil servants (or perhaps under the section Worldclass software, built for Amsterdam), it would be great for credibility if a senior civil servant in Amsterdam, preferably not in the team developing the codebase, could give a testimonial about what using Signalen means for their day to day work.

[jaccobrouwer]

Robert de Bruin could organize that. We've put it on the list as well. I thought of Mark Crooijmans (former director of the cluster where the Dienstverlening deparment was part of)

[Ainali]

Close unitl we have someone specific in mind.

[Ainali]

Using nice to have label instead