Docs: easier finding docs for monitoring #7039
Description
Describe the current issue
When I search for job monitoring (meaning a script that periodically checks the output of a running job and can take actions), I end up here: https://aiida.readthedocs.io/projects/aiida-core/en/stable/topics/processes/usage.html#monitoring-processes
It's hard to find the page even when I know it's there.
Describe the solution you'd like
The simplest is to add a note "If you are instead searching for the job monitoring of running jobs (BRIEF EXPLANATION OF 1 LINE HERE), click here" with a link to the correct page
(e.g. this: https://aiida.readthedocs.io/projects/aiida-core/en/stable/howto/run_codes.html#how-to-monitor-and-prematurely-stop-a-calculation that by the way I couldn't find via search, I found only after several attempts via manual browsing, "guessing" where it could have been)