Added solid-solid CHT tutorial to tutorials list

Author: EvertBunschoten

_data/tutorials.yml

@@ -44,6 +44,7 @@
    - Dynamic_FSI_Python
    - Static_CHT
    - Inc_Heated_Cylinders_Unsteady
+   - SS_CR_CHT
 
 - title: Design Features
   tutorials:

_tutorials/index.md

@@ -95,6 +95,8 @@ Linear Nastran-like model coupled with compressible unsteady RANS equations usin
 Simulation of multiple heated cylinders in incompressible fluid flow.
 * [Unsteady Conjugate Heat Transfer](/tutorials/Inc_Heated_Cylinders_Unsteady/)    
 Simulation of an unsteady coupled CHT problem incorporating multiple physical zones.
+* [Conjugate Heat Transfer between Solid Domains](/tutorials/SS_CR_CHT/) 
+Simulation of CHT between solid domains with contact resistance.
 
 #### Shape Design Features