Add missing inputs for Reid molecular viscosity (!95)

docs/source_docs/user_guide/inputs/fluid_model.rst

@@ -56,6 +56,11 @@ a single fluid; therefore, it is common to name the fluid ``fluid``. This is ill
 |                                            |                                                            |        |          |
 |                                            | A value is required for ``Sutherland`` viscosity model.    |        |          |
 +--------------------------------------------+------------------------------------------------------------+--------+----------+
+| viscosity.molecular.Reid.A,                | Reid model constants                                       |  Real  |  0       |
+| viscosity.molecular.Reid.B,                |                                                            |        |          |
+| viscosity.molecular.Reid.C, and            | Values are required for ``Reid`` viscosity model.          |        |          |
+| viscosity.molecular.Reid.D                 |                                                            |        |          |
++--------------------------------------------+------------------------------------------------------------+--------+----------+
 | viscosity.eddy                             | Specify eddy viscosity model.                              | String | None     |
 |                                            |                                                            |        |          |
 |                                            | Available options include:                                 |        |          |