Add resource: Circle Practice template

[theecrit]

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Description

We want to make it easier for members to adopt collective governance practices by providing tools and resources to the website. The latest is the Circle Practice template: https://docs.google.com/presentation/d/1OwD46SAEInvJzIEqJ-MVLkWzHlPjV5e1Hwo462lIzK8/edit?usp=sharing

Thank you!

• Please document your design and tech decisions in your pull request so others can follow along and understand why we've made the decisions we have.
• If you'd like feedback, input, or help, share your thoughts or question in this issue's comments.