fix: fix typos and small errors in the documentation

[mjablecnik]

Description

I fixed small mistakes in docs.

Type of change

• Bug fix (non-breaking change which fixes an issue)
• This change requires a documentation update

Checklist:

• My code follows the style guidelines of this project
• I have performed a self-review of my code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• My changes generate no new warnings
• I have added tests that prove my fix is effective or that my feature works
• New and existing unit tests pass locally with my changes
• Any dependent changes have been merged and published in downstream modules

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 89.03%. Comparing base (eb81221) to head (87f3d92).
Report is 3 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main      #79   +/-   ##
=======================================
  Coverage   89.03%   89.03%           
=======================================
  Files          74       74           
  Lines        2417     2417           
=======================================
  Hits         2152     2152           
  Misses        265      265           

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[francescovallone]

Thank you for your PR! This change will be immediately be reflected in the documentation after the merge!