Consolidate documentation into architecture and merged guides

docs/blender_previews/README.md

@@ -26,6 +26,6 @@ capture harnesses.
 | [![sheet_texture_refinement_0.9.5.jpg](sheet_texture_refinement_0.9.5.jpg)](sheet_texture_refinement_0.9.5.jpg) <br> `sheet_texture_refinement_0.9.5.jpg` | 0.9.5 texture refinement before/after: pavers, awning stripes and NPC fabric. |
 
 The acceptance criteria for these sheets are in [`../npc-visual-review.md`](../npc-visual-review.md),
-the measurements in [`../npc-proportion-audit.md`](../npc-proportion-audit.md) and
+the measurements in [`../npc-visual-review.md#proportion-audit`](../npc-visual-review.md#proportion-audit) and
 [`../3d-model-review.md`](../3d-model-review.md), and the asset contract in
 [`../blender-assets.md`](../blender-assets.md).