Update doc/specs/stdlib_linalg_iterative_solvers.md

Co-authored-by: Jeremie Vandenplas <[email protected]>

Author: jalvesz

doc/specs/stdlib_linalg_iterative_solvers.md

@@ -316,7 +316,7 @@ Subroutine
 
 `x`: 1-D array of `real(<kind>)` which serves as the input initial guess and the output solution. This argument is `intent(inout)`.
 
-`di` (optional): 1-D mask array of type `logical(int8)` defining the degrees of freedom subject to dirichlet boundary conditions. The actual boundary conditions values should be stored in the `b` load array. This argument is `intent(in)`.
+`di` (optional): 1-D mask array of type `logical(int8)` defining the degrees of freedom subject to dirichlet boundary conditions. The actual boundary condition values should be stored in the `b` load array. This argument is `intent(in)`.
 
 `rtol` and `atol` (optional): scalars of type `real(<kind>)` specifying the convergence test. For convergence, the following criterion is used \( || b - Ax ||^2 <= max(rtol^2 * || b ||^2 , atol^2 ) \). Default values are `rtol=1.e-5` and `atol=epsilon(1._<kind>)`. These arguments are `intent(in)`.