User-Guide.md

-# User guide for LAKE model version 2.1
+# User guide for LAKE model version 2.3
 ## Compiling the model and creating a project
 The only prerequisite to install LAKE model is Fortran compiler.
 The model can be built from source code by GNU and Intel Fortran compilers. GNU compiler is set by default in the model install configuration. Install configuration is given in files [Makefile](/../blob/master/Makefile) and [source/Makefile](/../blob/master/source/Makefile).  
@@ -72,6 +72,7 @@ by at least one space. Some keywords are followed by a group of numbers.
 |*N_LatentFlux* | The number of coloumn with latent heat flux, W/m^2 |
 |*N_Ustar* | The number of coloumn with friction velocity, m/s |
 |*N_surfrad* | The number of coloumn with radiation emitted by the surface, W/m^2 |
+|*N_NetRad* | The number of coloumn with net radiation, W/m^2 |
 |*N_cloud* | The number of coloumn with total cloudiness, fraction |
 
 **The parameters of time integration**
@@ -87,6 +88,9 @@ by at least one space. Some keywords are followed by a group of numbers.
 |*spinup_period* | The duration of spinup period, days |
 |*dt* | Time step of integration, s |
 |*call_Flake* | The switch for integrating FLake model: 1 - on, 0 - off |
+|*control point* | 0 – no control point, 1 – starting with initial conditions defined by init_T and writing control point regularly with cp_period interval,
+2 – the same as 1 but starting with last saved control point |
+|*cp period* | The interval of control point output, days; relevant if control_point>0 |
 
 **External physical parameters of a lake**