Update column-filtering.md

fixed a typo where the 'both' word is written twice

Author: Safy98

docs/guide/column-filtering.md

@@ -23,7 +23,7 @@ Filtering comes in 2 flavors: Column Filtering and Global Filtering.
 
 This guide will focus on column filtering, which is a filter that is applied to a single column's accessor value.
 
-TanStack table supports both both client-side and manual server-side filtering. This guide will go over how to implement and customize both, and help you decide which one is best for your use-case.
+TanStack table supports both client-side and manual server-side filtering. This guide will go over how to implement and customize both, and help you decide which one is best for your use-case.
 
 ### Client-Side vs Server-Side Filtering
 
@@ -332,4 +332,4 @@ There are a lot of Column and Table APIs that you can use to interact with the c
 - `column.getFilterIndex` - Useful for displaying in what order the current filter is being applied
 
 - `column.getAutoFilterFn` - 
-- `column.getFilterFn` - Useful for displaying which filter mode or function is currently being used
+- `column.getFilterFn` - Useful for displaying which filter mode or function is currently being used