Add reward hashes

[Kay-Zee]

Closes: #???

Description

Add reward hashes for he last 3 weeks

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For contributor use:

• [ ] Targeted PR against master branch
• [ ] Linked to Github issue with discussion and accepted design OR link to spec that describes this work.
• [ ] Updated relevant documentation
• [ ] Re-reviewed Files changed in the Github PR explorer
• [ ] Added appropriate labels

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Name	Status	Preview	Updated
flow-docs	✅ Ready (Inspect)	Visit Preview	Apr 20, 2022 at 3:06PM (UTC)