[DOC] Hyperlinks, fix poetry dev installation tutorial

[felipeffm]

• bug fix poetry dev installation tutorial
• add some hyperlinks do docs
• delete not used imports at jupyter example
• enhance explanation of equation (term by term)

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 94.64%. Comparing base (b323a04) to head (b56333b).

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #98 +/- ## ======================================= Coverage 94.64% 94.64% ======================================= Files 26 26 Lines 1177 1177 ======================================= Hits 1114 1114 Misses 63 63 ```

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