add dbt mesh faq page (#4702)

this PR adds the [dbt mesh
faqs](https://www.notion.so/dbtlabs/WIP-dbt-Mesh-Customer-FAQ-bdadabc9917a4be697db53142c6ff979#073b11b13ffd47c28c145e1ba386f4b8)
that our team are seeing users frequently asked. having a public facing
page will help users address those questions directly.

---------

Co-authored-by: Leona B. Campbell <3880403+runleonarun@users.noreply.github.com>
Co-authored-by: Matt Shaver <60105315+matthewshaver@users.noreply.github.com>
Co-authored-by: azzam34 <86269359+azzam34@users.noreply.github.com>

website/docs/best-practices/how-we-mesh/mesh-1-intro.md

@@ -32,6 +32,8 @@ dbt Cloud is designed to coordinate the features above and simplify the complexi
 
 If you're just starting your dbt journey, don't worry about building a multi-project architecture right away. You can _incrementally_ adopt the features in this guide as you scale. The collection of features work effectively as independent tools. Familiarizing yourself with the tooling and features that make up a multi-project architecture, and how they can apply to your organization will help you make better decisions as you grow.
 
+For additional information, refer to the [dbt Mesh FAQs](/best-practices/how-we-mesh/mesh-4-faqs).
+
 ## Learning goals
 
 - Understand the **purpose and tradeoffs** of building a multi-project architecture.