Update src/Init/Data/BitVec/Lemmas.lean

Co-authored-by: Kim Morrison <scott@tqft.net>

Author: mhk119

src/Init/Data/BitVec/Lemmas.lean

@@ -2901,7 +2901,7 @@ theorem toNat_rotateLeft {x : BitVec w} {r : Nat} :
 
 /-! ## Rotate Right -/
 
-/--`rotateRight` is defined in terms of left and right shifts. -/
+/-- `rotateRight` is defined in terms of left and right shifts. -/
 theorem rotateRight_def {x : BitVec w} {r : Nat} :
   x.rotateRight r = (x >>> (r % w)) ||| (x <<< (w - r % w)) := by
   simp only [rotateRight, rotateRightAux]