[docs] add magcache to caching api listing (#13714)

add magcache to caching api listing

docs/source/en/api/cache.md

@@ -35,8 +35,14 @@ Cache methods speedup diffusion transformers by storing and reusing intermediate
 
 [[autodoc]] apply_first_block_cache
 
-### TaylorSeerCacheConfig
+## TaylorSeerCacheConfig
 
 [[autodoc]] TaylorSeerCacheConfig
 
 [[autodoc]] apply_taylorseer_cache
+
+## MagCacheConfig
+
+[[autodoc]] MagCacheConfig
+
+[[autodoc]] apply_mag_cache

docs/source/en/optimization/cache.md

@@ -118,8 +118,6 @@ pipe.transformer.enable_cache(config)
 
 MagCache relies on **Magnitude Ratios** (`mag_ratios`), which describe this decay curve. These ratios are specific to the model checkpoint and scheduler.
 
-### Usage
-
 To use MagCache, you typically follow a two-step process: **Calibration** and **Inference**.
 
 1.  **Calibration**: Run inference once with `calibrate=True`. The hook will measure the residual magnitudes and print the calculated ratios to the console.