fix: precompilation as the docstrings had invalid syntax

src/Radials.jl

@@ -34,9 +34,9 @@ RadialBasis(x,y,lb,ub,rad::RadialFunction, scale_factor::Float = 1.0)
 
 Constructor for RadialBasis surrogate, of the form
 
-$$f(x) = \sum_{i=1}^{N} w_i \phi(|x - \bold{c}_i|) \bold{v}^{T} + \bold{v}^{\mathrm{T}} [ 0; \bold{x} ]$$
+``f(x) = \\sum_{i=1}^{N} w_i \\phi(|x - \\bold{c}_i|) \\bold{v}^{T} + \\bold{v}^{\\mathrm{T}} [ 0; \\bold{x} ]``
 
-where $w_i$ are the weights of polyharmonic splines $$\phi(x)$$ and $$\bold{v}$$ are coefficients
+where ``w_i`` are the weights of polyharmonic splines ``\\phi(x)`` and ``\\bold{v}`` are coefficients
 of a polynomial term.
 
 References: