Update mkdocs/docs/row-filter-syntax.md

Co-authored-by: Fokko Driesprong <[email protected]>

Author: norton120

mkdocs/docs/row-filter-syntax.md

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 # Row Filter Syntax
 
 In addtion to the primary [Expression DSL](expression-dsl.md), PyIceberg provides a string-based statement interface for filtering rows in Iceberg tables. This guide explains the syntax and provides examples for supported operations.