[skip ci][Doc] Refine the Diffusion Features User Guide (#1928)

Signed-off-by: Didan Deng <33117903+wtomin@users.noreply.github.com>

docs/design/feature/cache_dit.md

@@ -256,7 +256,7 @@ cache_config={
 }
 ```
 
-Check the [user guide for cache_dit](../../user_guide/diffusion/cache_dit_acceleration.md) for more adjustable parameters.
+Check the [user guide for cache_dit](../../user_guide/diffusion/cache_acceleration/cache_dit.md) for more adjustable parameters.
 
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