Added note about new header attribute to docs

d71e1c94 · Josh Borrow · a173527e · d71e1c94
Commit d71e1c94 authored May 29, 2020 by Josh Borrow
--- a/doc/RTD/source/ParameterFiles/output_selection.rst
+++ b/doc/RTD/source/ParameterFiles/output_selection.rst
@@ -142,4 +142,6 @@ follows::
  ...

 This will enable your simulation to perform partial dumps only at the outputs
-labelled as ``Snipshot``.
+labelled as ``Snipshot``. The name of the output selection that corresponds
+to your choice in the output list will be written to the snapshot header as
+``Header/SelectOutput``.