chore: align PR with target-repo conventions

Convention-shape patches extracted from huggingface/diffusers's recent merged PRs. Algorithm logic is left untouched. Ruff auto-fixed lint-trivial issues on patched files.

Author: remyx-ai[bot]

docs/source/en/api/modular_diffusers/guiders.md

@@ -14,6 +14,10 @@ Guiders are components in Modular Diffusers that control how the diffusion proce
 
 [[autodoc]] diffusers.guiders.classifier_free_zero_star_guidance.ClassifierFreeZeroStarGuidance
 
+## RectifiedClassifierFreeGuidance
+
+[[autodoc]] diffusers.guiders.rectified_classifier_free_guidance.RectifiedClassifierFreeGuidance
+
 ## SkipLayerGuidance
 
 [[autodoc]] diffusers.guiders.skip_layer_guidance.SkipLayerGuidance