Update docs/literate/src/files/behind_the_scenes_simulation_setup.jl

Co-authored-by: Daniel Doehring <[email protected]>

docs/literate/src/files/behind_the_scenes_simulation_setup.jl

@@ -8,7 +8,7 @@
 # configurations.
 
 # Trixi.jl follows the method of lines concept for solving partial differential equations.
-# Firstly, the partial differential equations are reduced to an ordinary differential equations
+# Firstly, the partial differential equations (PDEs) are reduced to a (potentially huge) system of ordinary differential equations (ODEs)
 # by discretizing the space. Subsequently, these new ODEs are solved with methods available in
 # OrdinaryDiffEq.jl or those specifically implemented in Trixi.jl. The following steps elucidate
 # the process of transitioning from PDEs to ODEs within the framework of Trixi.jl.