fix internal link

docs/sql/data_types.txt

@@ -27,12 +27,12 @@ These are values that are atomic, not composed of separate parts,
 no containers or collections.
 
 * `boolean`_
-* `byte <numeric types>`_
-* `short <numeric types>`_
-* `integer <numeric types>`_
-* `long <numeric types>`_
-* `float <numeric types>`_
-* `double <numeric types>`_
+* `byte <numeric types_>`_
+* `short <numeric types_>`_
+* `integer <numeric types_>`_
+* `long <numeric types_>`_
+* `float <numeric types_>`_
+* `double <numeric types_>`_
 * `string`_
 * `ip`_
 * `timestamp`_
@@ -276,9 +276,9 @@ Both of these index types accept the following parameters:
 
 :tree_levels: Maximum number of layers to be used by the ``PrefixTree`` defined
               by the index type (either ``geohash`` or ``quadtree``, see :ref:`geo_shape_data_type_index`).
-              This can be used to control the precision of the used index. Since this parameter requires 
+              This can be used to control the precision of the used index. Since this parameter requires
               a certain level of understanting of the underlying implementation, users may use the ``precision``
-              parameter instead. Crate uses the ``tree_levels`` parameter internally and this is 
+              parameter instead. Crate uses the ``tree_levels`` parameter internally and this is
               what is returned via the ``SHOW CREATE TABLE`` statement even if you use the
               precision parameter. Defaults to the value which is ``50m`` converted to ``precision``
               depending on the index type.