Add github project preview

Author: ch1bo

site/docs/roadmap-preview.png

@@ -5,6 +5,8 @@ through multiple [software readiness
 levels](https://committees.docs.intersectmbo.org/intersect-technical-steering-committee/technical-roadmap/project-cards-explained/software-readiness-level)
 and ultimately deploy it as a consensus upgrade onto the Cardano network.
 
+## Objectives
+
 Following our [strategy](./strategy.md), we identified several key objectives
 along the way which are roughly in order, but not strictly sequential. Instead,
 each will give rise to a list of _marketable features_, which we going to
@@ -13,6 +15,12 @@ These objectives and features make up the actual product roadmap, which we are
 going to update and report on every month via [this github
 project](https://github.com/orgs/input-output-hk/projects/167).
 
+<a href="https://github.com/orgs/input-output-hk/projects/167">
+
+![](./roadmap-preview.png)
+
+</a>
+
 <!-- TODO: go into more detail on why each objective is important and also what's in scope -->
 
 ### Improvement Proposal (CIP)