Fix examples

[MorganeExtrality]

Some examples of the documentation present the following line of code:

simai = ansys.simai.core_from_config()

Which returns the following error:

Fix AttributeError: module 'ansys.simai' has no attribute 'core_from_config'

This PR fixes that.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 83.62%. Comparing base (d973fe5) to head (ccd0d80).
Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #102   +/-   ##
=======================================
  Coverage   83.62%   83.62%           
=======================================
  Files          44       44           
  Lines        2589     2589           
=======================================
  Hits         2165     2165           
  Misses        424      424           

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[tmpbeing]

Thank you !