Fixed mistakes and updated example (#117)

* Added docstrings to frequency_merge function.

* Format

* Update freqs.py

* Fixed mistakes and updated example to be simpler.

* Update example to use vsrgtools.

* format with ruff.

* Revert "format with ruff."

This reverts commit 6d2dd2a.

* flake 8'd

---------

Co-authored-by: Setsugennoao <setsugen@setsugen.dev>
Co-authored-by: Your Name <you@example.com>

vsdenoise/freqs.py

@@ -24,30 +24,16 @@ def frequency_merge(
 ) -> vs.VideoNode:
     """
     Merges the frequency components of the input clips.
-    
     :param _clips:      The clips to merge.
-    :param tr:          The temporal radius to use for motion compensation.
-    :param mode_high:   The mode to use for the high frequency components or
+    :param tr:          The temporal radius to use for temporal mean mode.
+    :param mode_high:   The mean mode to use for the high frequency components or
                         specifying the clip with the high frequency components.
-    :param mode_low:    The mode to use for the low frequency components or
+    :param mode_low:    The mean mode to use for the low frequency components or
                         specifying the clip with the low frequency components.
-    :param mode_tr:     The mode to use for motion compensation.
+    :param mode_tr:     The mode to use for temporal mean.
                         If None, it defaults to the value of mode_high.
-    :param lowpass:     The lowpass filter to used to extract low frequency components.
-                            Example: 
-                                ```
-                                    lowpass=[
-                                        None,
-                                        lambda i: core.fmtc.resample(
-                                            i,
-                                            h=1080,
-                                            w=1920,
-                                            kernel="lanczos",
-                                            taps=[4, 2],
-                                            fv=[1 / 1.25, 1 / 1.375],
-                                            fh=[1 / 1.25, 1 / 1.375],
-                                        )
-                                ```
+    :param lowpass:     The lowpass filter to used to extract high frequency components.
+                            Example: `lowpass = lambda i: vsrgtools.box_blur(i, passes=3)`
     :param mean_diff:   Whether to use the mean of the lowpass filter and the original clip to
                         extract the low frequency components. Default is False.
     :param planes:      The planes to process. If None, all planes will be processed.