Update links for GPAW

README.md

@@ -118,9 +118,13 @@ The program offers several parallelization levels. The most basic parallelizatio
 
 - Web site: https://wiki.fysik.dtu.dk/gpaw/
 - Code download: https://gitlab.com/gpaw/gpaw
-- Build instructions: https://repository.prace-ri.eu/git/UEABS/ueabs/blob/r1.3/gpaw/GPAW_Build_README.txt
-- Test Case A: http://www.prace-ri.eu/UEABS/GPAW/GPAW_benchmark.tar.gz
-- Run instructions: https://repository.prace-ri.eu/git/UEABS/ueabs/blob/r1.3/gpaw/GPAW_Run_README.txt
+- Build instructions: [gpaw/README.md#install](gpaw/README.md#install)
+- Benchmarks:
+  - [Case S: Carbon nanotube](gpaw/benchmark/carbon-nanotube)
+  - [Case M: Copper filament](gpaw/benchmark/copper-filament)
+  - [Case L: Silicon cluster](gpaw/benchmark/silicon-cluster)
+- Run instructions:
+  [gpaw/README.md#running-the-benchmarks](gpaw/README.md#running-the-benchmarks)
 
 # GROMACS <a name="gromacs"></a>