Update scrollIntoView() documentation to clarify inline alignment opt…

…ions

- Clarified the usage of the  `inline` alignment options in the `scrollIntoView()` method.
- Added descriptions for horizontal (`inline`) alignment, including possible values and default behaviors.

files/en-us/web/api/element/scrollintoview/index.md

@@ -54,9 +54,13 @@ scrollIntoView(scrollIntoViewOptions)
           edge, it will align to the bottom. This minimizes the scrolling distance.
         - Defaults to `start`.
     - `inline` {{optional_inline}}
-      - : Defines horizontal alignment.
-        One of `start`, `center`, `end`, or
-        `nearest`. Defaults to `nearest`.
+      - : Defines the horizontal alignment of the element within the scrollable ancestor container. This option is a string and accepts one of the following values:
+        - `start`: Aligns the element's left edge with the left of the scrollable container, making the element appear at the start of the visible area horizontally.
+        - `center`: Aligns the element horizontally at the center of the scrollable container, positioning it in the middle of the visible area.
+        - `end`: Aligns the element's right edge with the right of the scrollable container, placing the element at the end of the visible area horizontally.
+        - `nearest`: Scrolls the element to the nearest edge in the horizontal direction. If the element is closer to the left edge of the scrollable container, it will align to the left; if it's closer to the 
+          right edge, it will align to the right. This minimizes the scrolling distance.
+        - Defaults to `nearest`.
 
 ### Return value