Typo: Smagorinsky in Extended Code Guide

Hi,

Within the page: https://www.openfoam.com/documentation/cpp-guide/html/guide-turbulence-les-smagorinsky.html , the free term c of the quadratic function has the sub-term (dev(D)⋅D).

But, the operation is a double inner product rather than an inner product.

Therefore, IMHO, this needs to be changed to (dev(D):D).

Kind regards