Update docs/internals/layout_in_storage.rst

Co-authored-by: Bhargava Shastry <bhargava.shastry@ethereum.org>

Author: chriseth

docs/internals/layout_in_storage.rst

@@ -126,7 +126,7 @@ The type of the value is ``uint256``, so it uses the full slot.
 ``bytes`` and ``string`` are encoded identically.
 In general, the encoding is similar to ``byte1[]``, in the sense that there is a slot for the array itself and
 a data area that is computed using a ``keccak256`` hash of that slot's position.
-For short values, though, the array elements are stored together with the length in the same slot.
+For short values (shorter than 32 bytes) the array elements are stored together with the length in the same slot.
 
 In particular: if the data is at most ``31`` bytes long, the elements are stored
 in the higher-order bytes (left aligned) and the lowest-order byte stores the value ``length * 2``.