docs: minor fixes

Author: EscapedGibbon

docs/Features/Filters/Blur.md

@@ -8,10 +8,11 @@ This method only works with images.
 
 Blur, also known as average blur or box blur, is a simple image processing technique used to reduce noise and smooth out images. It involves replacing the color value of a pixel with the average color value of its neighboring pixels within a specified window or kernel. This process effectively blurs the image and reduces high-frequency noise.
 
-Box blur is particularly effective in reducing [salt-and-pepper](https://en.wikipedia.org/wiki/Salt-and-pepper_noise 'wikipedia link on salt and pepper noise') noise (random black and white pixels) and minor imperfections in an image. However, it also leads to loss of finer details, so the choice of [kernel](../../Glossary.md#kernel) size is important.
-
 <BlurDemo />
 
+Box blur is particularly effective in reducing [salt-and-pepper](https://en.wikipedia.org/wiki/Salt-and-pepper_noise 'wikipedia link on salt and pepper noise') noise (random black and white pixels) and minor imperfections in an image. However, it also leads to loss of finer details, so the choice of [kernel](../../Glossary.md#kernel) size is important.
+More advanced blurring techniques, such as [Gaussian blur](./gaussianBlur.md 'internal link to gaussian blur') or [bilateral filter](https://en.wikipedia.org/wiki/Bilateral_filter 'wikipedia link on bilateral filters'), are often used for better results in various applications.
+
 ### Parameters and default values
 
 - `options`
@@ -26,8 +27,6 @@ Box blur is particularly effective in reducing [salt-and-pepper](https://en.wiki
 | [`borderValue`](https://image-js.github.io/image-js-typescript/interfaces/BlurOptions.html#borderValue) | no       | `0`           |
 | [`out`](https://image-js.github.io/image-js-typescript/interfaces/BlurOptions.html#out)                 | no       | -             |
 
-More advanced blurring techniques, such as [Gaussian blur](./gaussianBlur.md 'internal link to gaussian blur') or [bilateral filter](https://en.wikipedia.org/wiki/Bilateral_filter 'wikipedia link on bilateral filters'), are often used for better results in various applications.
-
 <details>
 <summary>
 <b>Implementation</b>

docs/Features/Filters/grayscale.md

@@ -10,6 +10,8 @@ This method only works with images.
 
 <GrayDemo />
 
+The grayscale filter essentially eliminates the color information from the image and retains only the luminance or brightness values. This type of image is often used in situations where color is not essential for understanding or conveying the visual information. Grayscale images can emphasize the tonal contrast and structural details of a scene, making them particularly useful for tasks like analyzing textures, patterns, and lighting conditions.
+
 ### Parameters and default values
 
 - `options`
@@ -57,8 +59,6 @@ This method only works with images.
 
 - **`saturation`** : takes a fraction from difference of minimum and maximum components of a pixel.
 
-The grayscale filter essentially eliminates the color information from the image and retains only the luminance or brightness values. This type of image is often used in situations where color is not essential for understanding or conveying the visual information. Grayscale images can emphasize the tonal contrast and structural details of a scene, making them particularly useful for tasks like analyzing textures, patterns, and lighting conditions.
-
 <details>
 <summary>
 <b>Implementation</b>

docs/Features/Filters/subtract.md

@@ -1,4 +1,4 @@
-[Check options and parameters of subtract method](https://image-js.github.io/image-js-typescript/classes/Mask.html#subtract 'github.io link')
+[Check options and parameters of subtract method](https://image-js.github.io/image-js-typescript/classes/Image.html#subtract 'github.io link')
 
 Method called `subtract`, as the name suggests, takes another Image(or Mask) and makes a subtraction between each respective bit.
 It works like this:
@@ -23,3 +23,9 @@ Both masks must have the same size for compatibility reasons. Images must have t
 - [`mask`](https://image-js.github.io/image-js-typescript/classes/Mask.html#subtract 'github.io link')
 
 - [`options`](https://image-js.github.io/image-js-typescript/classes/Mask.html#subtract 'github.io link')
+
+#### Options
+
+| Property                                                                                                   | Required | Default value |
+| ---------------------------------------------------------------------------------------------------------- | -------- | ------------- |
+| [`absolute`](https://image-js.github.io/image-js-typescript/interfaces/SubtractImageOptions.html#absolute) | no       | `false`       |