Added paragraph break

Author: cmazzullo

doc/source/io.rst

@@ -108,14 +108,15 @@ header : int or list of ints, default ``'infer'``
   passed the behavior is identical to ``header=0`` and column names
   are inferred from the first line of the file, if column names are
   passed explicitly then the behavior is identical to
-  ``header=None``. Explicitly pass ``header=0`` to be able to replace
-  existing names. The header can be a list of ints that specify row
-  locations for a multi-index on the columns
-  e.g. ``[0,1,3]``. Intervening rows that are not specified will be
-  skipped (e.g. 2 in this example is skipped). Note that this
-  parameter ignores commented lines and empty lines if
-  ``skip_blank_lines=True``, so header=0 denotes the first line of
-  data rather than the first line of the file.
+  ``header=None``.
+
+  Explicitly pass ``header=0`` to be able to replace existing
+  names. The header can be a list of ints that specify row locations
+  for a multi-index on the columns e.g. ``[0,1,3]``. Intervening rows
+  that are not specified will be skipped (e.g. 2 in this example is
+  skipped). Note that this parameter ignores commented lines and empty
+  lines if ``skip_blank_lines=True``, so header=0 denotes the first
+  line of data rather than the first line of the file.
 names : array-like, default ``None``
   List of column names to use. If file contains no header row, then you should
   explicitly pass ``header=None``. Duplicates in this list will cause