message: modify kimchi.md
diff: @@ -1283,7 +1283,7 @@ pub struct VerifierIndex<G: CommitmentCurve> {
  // TODO(mimoo): isn't this redundant with domain.d1.group_gen ?
  /// domain offset for zero-knowledge
  #[serde(skip)]
  - pub w: ScalarField<G>,
  + w: OnceCell<ScalarField<G>>,
  /// endoscalar coefficient
  #[serde(skip)]
  pub endo: ScalarField<G>,
  