Update section on programming languages

[MalinAhlberg]

Suggestion from team Yellow:

The list of "top languages" now includes

• Python
• Shell
• Perl

We suggest that this is updated to reflect the knowledge, use and preferences within the dev group, instead of NBIS in general. Top language would be Python & Shell, and recommended once include TypeScript, Perl, C/C++, R etc.

[kusalananda]

The list was generated by GitHub based on the amount of code in our repositories. See the "Top Languages" box here: https://github.com/NBISweden (it currently lists Python, HTML, Shell, R, Perl (in this order)).

A list based on the amount of code on GitHub may not reflect the actual expertise in the group though. We may want to turn this list into a more manually curated list.

[kusalananda]

In conversation, Kostas pointed out that we may want to list Go as one of the languages that we can provide expertise in.

This makes the case for turning the list of languages into a more carefully managed list, and not just a list of languages used in code on GitHub.