Update RedBlackBinaryTree.sol

Signed-off-by: Elias Rad <146735585+nnsW3@users.noreply.github.com>

src/RedBlackBinaryTree.sol

@@ -18,7 +18,7 @@ library RedBlackBinaryTree {
  uint256 parent; // The parent node of the current node.
  uint256 leftChild; // The left child of the current node.
  uint256 rightChild; // The right child of the current node.
- bool red; // Whether the current notde is red or black.
+ bool red; // Whether the current node is red or black.
  address[] keys; // The keys sharing the value of the node.
  mapping(address => uint256) keyMap; // Maps the keys to their index in `keys`.
  }