note on symmetry

[FilipeFcp]

Added the note

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Spell Check Report

ResonanceFinder.ipynb:

Cell 11, Line 5: 'microdisk's'
  > **Note on symmetry:** In this example, we use `symmetry=(1, -1, 1)` to take advantage of the microdisk's geometric symmetry and reduce the computation cost. However, it is important to be aware that applying symmetry constraints means that only modes whose field profiles are compatible with the specified symmetry will be excited and detected by the resonance finder. Modes with different symmetry properties (e.g., modes that are anti-symmetric where a symmetric boundary condition is enforced, or vice versa) will be filtered out and will not appear in the results. If you need to find all supported modes of a structure, consider either removing the symmetry setting or running multiple simulations with different symmetry combinations to capture modes of all symmetry classes.

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[tomflexcompute]

Thanks @FilipeFcp ! Looks good to go.