Update indents in pydoc

Author: amithkk

pandas/io/parsers/readers.py

@@ -393,9 +393,9 @@
     .. versionchanged:: 1.4.1
 
         - Callable, function with signature
-         as described in `pyarrow documentation
-         <https://arrow.apache.org/docs/python/generated/pyarrow.csv.ParseOptions.html
-         #pyarrow.csv.ParseOptions.invalid_row_handler>_` when ``engine='pyarrow'``
+          as described in `pyarrow documentation
+          <https://arrow.apache.org/docs/python/generated/pyarrow.csv.ParseOptions.html
+          #pyarrow.csv.ParseOptions.invalid_row_handler>_` when ``engine='pyarrow'``
 
 delim_whitespace : bool, default False
     Specifies whether or not whitespace (e.g. ``' '`` or ``'\\t'``) will be