Update tips.md

Author: amontoison

docs/src/tips.md

@@ -5,7 +5,7 @@ but you can modify the linear solver with the keyword argument `linear_solver`.
 
 ### HSL
 
-Obtain a license and download `HSL_jll.jl` from [https://licences.stfc.ac.uk/product/libhsl](https://licences.stfc.ac.uk/product/libhsl).
+Obtain a license and download `HSL_jll.jl` from [https://licences.stfc.ac.uk/products/Software/HSL/LibHSL](https://licences.stfc.ac.uk/products/Software/HSL/LibHSL).
 
 There are two versions available: LBT and OpenBLAS. LBT is the recommended option for Julia ≥ v1.9.