doc(Analysis.Complex.CauchyIntegral): add missing word (#9211)

Replace "continuous the closed annulus" with " continuous on the closed annulus"

Mathlib/Analysis/Complex/CauchyIntegral.lean

@@ -293,10 +293,10 @@ theorem integral_boundary_rect_eq_zero_of_differentiableOn (f : ℂ → E) (z w
       inter_subset_inter (preimage_mono Ioo_subset_Icc_self) (preimage_mono Ioo_subset_Icc_self)
 #align complex.integral_boundary_rect_eq_zero_of_differentiable_on Complex.integral_boundary_rect_eq_zero_of_differentiableOn
 
-/-- If `f : ℂ → E` is continuous the closed annulus `r ≤ ‖z - c‖ ≤ R`, `0 < r ≤ R`, and is complex
-differentiable at all but countably many points of its interior, then the integrals of
-`f z / (z - c)` (formally, `(z - c)⁻¹ • f z`) over the circles `‖z - c‖ = r` and `‖z - c‖ = R` are
-equal to each other. -/
+/-- If `f : ℂ → E` is continuous on the closed annulus `r ≤ ‖z - c‖ ≤ R`, `0 < r ≤ R`,
+and is complex differentiable at all but countably many points of its interior,
+then the integrals of `f z / (z - c)` (formally, `(z - c)⁻¹ • f z`)
+over the circles `‖z - c‖ = r` and `‖z - c‖ = R` are equal to each other. -/
 theorem circleIntegral_sub_center_inv_smul_eq_of_differentiable_on_annulus_off_countable {c : ℂ}
     {r R : ℝ} (h0 : 0 < r) (hle : r ≤ R) {f : ℂ → E} {s : Set ℂ} (hs : s.Countable)
     (hc : ContinuousOn f (closedBall c R \ ball c r))