improve test title

Author: christian-fei

src/_DataStructures_/Trees/BinaryTree/bottom-view-binary-tree/BottomViewBinaryTree.test.js

@@ -8,10 +8,10 @@ describe('Bottom View Binary Tree', () => {
     btree = new BinaryTree([1, 2, 3, 4, 5, 6]);
   });
 
-  it('Determines the bottom view of a binary tree', () => {
+  it('Should determine the bottom view of a binary tree', () => {
     expect(bottomView(btree)).toEqual([6, 2, 3, 4]);
   });
-  it('handles null binary tree', () => {
+  it('Should handle null binary tree', () => {
     expect(bottomView(null)).toEqual([]);
   });
 });