CHG: syntax highlight

Author: MathieuMorlighem

docs/getting-started/model-class.md

@@ -7,17 +7,17 @@ nav_order: 2
 
 # Model Class
 All the data belonging to a model (geometry, node coordinates, results, etc.) is held in the same object `model`. To create a new model in MATLAB, run,
-````
-md = model
-````
+```m
+md = model()
+```
 and in Python,
-````
+```py
 from model import *
 md = model()
-````
+```
 This will create a new model named `md` whose class is `model`. The information contained in the model `md` is grouped by class, each of which are comprised of fields related to that particular aspect of the model (e.g. mesh, material properties, friction, stressbalance solution, solution results). When one creates a new model, all of these fields are empty or `NaN` (not a number), but `md` is ready to be used as a model. The list of these classes is displayed by running, in MATLAB,
 
-````
+```m
 >> md
 md = 
 
@@ -28,9 +28,9 @@ md =
             results: [1x1 struct]           -- model results
        radaroverlay: [1x1 radaroverlay]     -- radar image for plot overlay
       miscellaneous: [1x1 miscellaneous]    -- miscellaneous fields
-````
+```
 or, in Python,
-````
+```py
 >>> print(md)
                mesh: [1x1 mesh2d]           -- mesh properties
                mask: [1x1 mask]             -- defines grounded and floating elements
@@ -39,25 +39,24 @@ or, in Python,
        radaroverlay: [1x1 radaroverlay]      -- radar image for plot overlay
       miscellaneous: [1x1 miscellaneous]     -- miscellaneous fields
   stochasticforcing: [1x1 stochasticforcing] -- stochasticity applied to model forcings
-````
+```
 
 Likewise, you can display all the fields associated with, for example, the model's mesh by running,
-````
+```m
 >> md.mesh
 ````
 or,
-````
+```py
 >>> print(md.mesh)
-````
+```
 
 ## Saving/Loading a Model
 You can save the model with all its fields so that the saved file contains all of the information in the model by running,
-````
+```m
 save squaremodel md
-````
+```
 This will create a file `squaremodel.mat` made from the model `md`. Likewise, to load this file, run,
-````
+```m
 >> loadmodel squaremodel
-````
+```
 The loaded model will be named `md`.
-