updtae manual

docs/getting-started/running-model.md

@@ -3,7 +3,7 @@ The model executable needs to be run inside the folder where all the model input
 1. hgrid.gr3
 2. vgrid.in
 3. param.nml
-4. [your_choice_of_bottom_friction].gr3
+4. [your_choice_of_bottom_friction].gr3 (drag.gr3, rough.gr3, manning.gr3)
 5. bctides.in
 
 The model is usually run through a batch script, which in essence executes the code like:
@@ -27,4 +27,4 @@ Some details for using scribed IO mode are following:
 - Users must specify # of scribes on cmd line as `mpirun -np NPROC ./pschism <nscribe>`. The specified number can be >= min required based on `param.nml` and explained above. If not you'll get an error. If you specify more than needed, you waste some cores but otherwise fine.
 
 !!!caution "WWM"
-    When running with WWM, make sure to remove fort.* in the directory where hgrid.gr3 is; otherwise the code will try to read in fort.* which may result in NaN error. You can add this into your batch script.
+    When running with WWM, make sure to remove `fort.*` in the directory where hgrid.gr3 is; otherwise the code will try to read in `fort.*` which may result in NaN error. You can add this into your batch script.