fix docs

[AymenFJA]

This addresses to #3254

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All modified and coverable lines are covered by tests ✅

Project coverage is 42.83%. Comparing base (35a55ad) to head (f290844).

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##            devel    #3256   +/-   ##
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  Coverage   42.83%   42.83%           
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  Files          97       97           
  Lines       11246    11246           
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  Hits         4817     4817           
  Misses       6429     6429           

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[andre-merzky]

LGTM!

[andre-merzky]

This line misses a comma, causing the NB to fail.

[andre-merzky]

Left a minor change request

[mtitov]

@andre-merzky @AymenFJA have a general proposal to rewrite this section/tutorial:

1. our focus is a "local" submission - either from the login node or from the compute node (i.e., inside the batch job, using interactive job or batch script). Thus, we don't talk about access_schema parameters here at all, because it is set by default. We can give examples of how to get interactive job or write a batch script (while considering that the RP pilot description is not anyhow different for these examples), but we should make a note that user is required to refer to the corresponding platform's user guide to follow their instructions.
2. "remote" submission, which is optional and only if platform supports it. If it is the case, then user need to have a corresponding configuration within the resource config for that platform, and the name for that set of config parameters (e.g., ssh, gsissh, etc.) should be used in the access_schema for PilotDescription.

Thus, this section is about submission within the platform, the second part is optional