Update doc/specs/stdlib_linalg.md

Co-authored-by: Jeremie Vandenplas <jeremie.vandenplas@gmail.com>

Author: perazz

doc/specs/stdlib_linalg.md

@@ -635,7 +635,7 @@ Result vector `x` returns the approximate solution that minimizes the 2-norm \(
 Returns an array value that represents the solution to the least squares system.
 
 Raises `LINALG_ERROR` if the underlying Singular Value Decomposition process did not converge.
-Raises `LINALG_VALUE_ERROR` if the matrix and rhs vectors have invalid/incompatible sizes.
+Raises `LINALG_VALUE_ERROR` if the matrix and right-hand-side vector have invalid/incompatible sizes.
 Exceptions trigger an `error stop`.
 
 ### Example