Update README.md

challenges/gpu/README.md

@@ -129,7 +129,14 @@ Below is a batch script to run the VecAdd.o, that you compiled on the GPU, in ch
 and the CADES software environment. 
 
 In the sample folder the script is called gpu.sbatch. 
-vi gpu.sbatch and fill in the missing parts of the script as described below. 
+
+Issue:
+
+```
+vi gpu.sbatch 
+```
+
+Fill in the missing parts of the script as described below. 
 
 **run_vecadd.sbatch**
 ```