[Doc] Update documentation about the changes on activity files
@@ -49,7 +49,8 @@ write_openfpga_simulation_setting
.. option:: --file <string> or -f <string>
- Specify the file name. For example, ``--file auto_simulation_setting_echo.xml``
+ Specify the file name. For example, ``--file auto_simulation_setting_echo.xml``.
+ See details about file format at :ref:`simulation_setting`.
.. option:: --verbose
@@ -62,7 +63,8 @@ link_openfpga_arch
.. option:: --activity_file <string>
- Specify the signal activity file. For example, ``--activity_file counter.act``
+ Specify the signal activity file. For example, ``--activity_file counter.act``.
+ This is required when users wants OpenFPGA to automatically find the number of clocks in simulations. See details at :ref:`simulation_setting`.
.. option:: --sort_gsb_chan_node_in_edges
