Tweaks docs on sdk constants

docs/hamilton-ui/ui.rst

@@ -276,13 +276,15 @@ To change the defaults via a config file, you can do the following:
 
 
 To change the defaults via environment variables, you can do the following, prefixing them with `HAMILTON_`:
+
 .. code-block:: bash
 
     export HAMILTON_MAX_LIST_LENGTH_CAPTURE=100
     export HAMILTON_MAX_DICT_LENGTH_CAPTURE=200
     python run_my_hamilton_code.py
 
 To change the defaults directly, you can do the following:
+
 .. code-block:: python
 
     from hamilton_sdk.tracking import constants
@@ -304,6 +306,7 @@ To change the defaults directly, you can do the following:
         .with_adapters(tracker)
         .build()
     )
+    dr.execute(...)
 
 In terms of precedence, the order is: