adjusted the indentation of doc of io.sql.read_frame

Author: duozhang

pandas/io/sql.py

@@ -140,8 +140,8 @@ def read_frame(sql, con, index_col=None, coerce_float=True):
     index_col: string, optional
         column name to use for the returned DataFrame object.
     coerce_float : boolean, default True
-            Attempt to convert values to non-string, non-numeric objects (like
-            decimal.Decimal) to floating point, useful for SQL result sets
+        Attempt to convert values to non-string, non-numeric objects (like
+        decimal.Decimal) to floating point, useful for SQL result sets
     """
     cur = execute(sql, con)
     rows = _safe_fetch(cur)