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Improve legibility of window functions list

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Before, markdown was rendering these as one big paragraph.
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docs/en/sql-reference/window-functions/index.md
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@ -86,14 +86,14 @@ WINDOW window_name as ([[PARTITION BY grouping_column] [ORDER BY sorting_column]
These functions can be used only as a window function.
`row_number()` - Number the current row within its partition starting from 1.
`first_value(x)` - Return the first non-NULL value evaluated within its ordered frame.
`last_value(x)` - Return the last non-NULL value evaluated within its ordered frame.
`nth_value(x, offset)` - Return the first non-NULL value evaluated against the nth row (offset) in its ordered frame.
`rank()` - Rank the current row within its partition with gaps.
`dense_rank()` - Rank the current row within its partition without gaps.
`lagInFrame(x)` - Return a value evaluated at the row that is at a specified physical offset row before the current row within the ordered frame.
`leadInFrame(x)` - Return a value evaluated at the row that is offset rows after the current row within the ordered frame.
- `row_number()` - Number the current row within its partition starting from 1.
- `first_value(x)` - Return the first non-NULL value evaluated within its ordered frame.
- `last_value(x)` - Return the last non-NULL value evaluated within its ordered frame.
- `nth_value(x, offset)` - Return the first non-NULL value evaluated against the nth row (offset) in its ordered frame.
- `rank()` - Rank the current row within its partition with gaps.
- `dense_rank()` - Rank the current row within its partition without gaps.
- `lagInFrame(x)` - Return a value evaluated at the row that is at a specified physical offset row before the current row within the ordered frame.
- `leadInFrame(x)` - Return a value evaluated at the row that is offset rows after the current row within the ordered frame.
```text
PARTITION