Merge instructions fix and job array clarification

First, I thought it would be useful to let people know that the time variable is for each element of the array, and not the job as a whole, so I changed that.

Then, when trying to figure out how to merge, I found a broken link, so I fixed that as well.

content/submitting_jobs/submitting_a_job_array.md

@@ -34,6 +34,8 @@ sleep 60
 The submit file above will output the `$SLURM_ARRAY_TASK_ID`, which will
 be different for every one of the 32 (0-31) jobs, to the output files.
 
+Note that the time variable is the time for each job in the array.
+
 Job Arrays in SLURM have more features than this brief description,
 please visit the [SLURM Documentation](https://slurm.schedmd.com/job_array.html)
 for more detailed information.