Fixed indentation and position of delta_treatment in plasma/standard_…

…plasmas.py (#841)

tardis/plasma/standard_plasmas.py

@@ -135,11 +135,12 @@ def assemble_plasma(config, model, atom_data=None):
     if config.plasma.line_interaction_type in ('downbranch', 'macroatom'):
         plasma_modules += macro_atom_properties
 
+    if 'delta_treatment' in config.plasma:
+        property_kwargs[RadiationFieldCorrection] = dict(
+            delta_treatment=config.plasma.delta_treatment)
+
     if config.plasma.helium_treatment == 'recomb-nlte':
         plasma_modules += helium_nlte_properties
-        if 'delta_treatment' in config.plasma:
-            property_kwargs[RadiationFieldCorrection] = dict(
-                delta_treatment=config.plasma.delta_treatment)
     elif config.plasma.helium_treatment == 'numerical-nlte':
         plasma_modules += helium_numerical_nlte_properties
         # TODO: See issue #633