Update N min and org parameter definitions (#91)

Author: dlebauer

docs/parameters.md

@@ -88,7 +88,9 @@ Run-time parameters can change from one run to the next, or when the model is st
 | 4  | $C_{\text{soil},0}$        | soilInit        | Initial soil carbon                                                      | $\text{g C} \cdot \text{m}^{-2} \text{ ground area}$ |                                                                                    |
 | 5  | $W_{\text{litter},0}$      | litterWFracInit |                                                                          | unitless                                             | fraction of litterWHC                                                              |
 | 6  | $W_{\text{soil},0}$        | soilWFracInit   |                                                                          | unitless                                             | fraction of soilWHC                                                                |
-|    | $N_{\text{min},0}$         |                 | Initial soil organic nitrogen content                                    | g N m$^{-2}$                                         |                                                                                    |
+|    | $N_{\text{org, litter},0}$         |                 | Initial litter organic nitrogen content                                    | g N m$^{-2}$                                         |                                                                                    |
+|    | $N_{\text{org, soil},0}$         |                 | Initial soil organic nitrogen content                                    | g N m$^{-2}$                                         |                                                                                    |
+|    | $N_{\text{min, soil},0}$         |                 | Initial soil mineral nitrogen content                                    | g N m$^{-2}$                                         |                                                                                    |
 |    | ${CH_4}_{\text{soil},0}$   |                 | Initial methane concentration in the soil                                | g C m$^{-2}$                                         |                                                                                    |
 |    | ${N_2O}_{\text{soil},0}$   |                 | Nitrous oxide concentration in the soil                                  | g N m$^{-2}$                                         |                                                                                    |
 |    | $f_{\text{fine root},0}$   | fineRootFrac    | Fraction of `plantWoodInit` allocated to initial fine root carbon pool   |                                      |                                                                                    |