chore(docs): refresh designer note and remove audit report

Author: tmarhguy

README.md

@@ -16,7 +16,7 @@
 
 <div align="center">
  <a href="media/videos/all_ops_demo.mp4">
-   <img src="media/photos/alu_slant.png" width="400" alt="ALU Board Slant View">
+    <img src="media/photos/alu_slant.png" width="400" alt="ALU Board Slant View" style="margin-top:32px;margin-bottom:32px;">
  </a>
 </div>