DOC: Fix typo in StylerRenderer.format docstring (#59090)

Fix typo in `StylerRenderer.format` docstring

Author: tdy

pandas/io/formats/style_render.py

@@ -1052,7 +1052,7 @@ def format(
         When using a ``formatter`` string the dtypes must be compatible, otherwise a
         `ValueError` will be raised.
 
-        When instantiating a Styler, default formatting can be applied be setting the
+        When instantiating a Styler, default formatting can be applied by setting the
         ``pandas.options``:
 
           - ``styler.format.formatter``: default None.