Merge pull request pandas-dev#8598 from artemyk/io_doc_fix

Function pointer misspecified in io documentaion

Author: jreback

doc/source/io.rst

@@ -3411,7 +3411,7 @@ Of course, you can specify a more "complex" query.
 
    pd.read_sql_query("SELECT id, Col_1, Col_2 FROM data WHERE id = 42;", engine)
 
-The func:`~pandas.read_sql_query` function supports a ``chunksize`` argument.
+The :func:`~pandas.read_sql_query` function supports a ``chunksize`` argument.
 Specifying this will return an iterator through chunks of the query result:
 
 .. ipython:: python