Fix 2 typos

Author: kelsonic

README.md

@@ -1040,8 +1040,8 @@ undefined;
 ```
 
 - A: `0`, `''`, `undefined`
-- B: `0`, `new Number(0)`, `''`, `new Boolean(false`, `undefined`
-- C: `0`, `''`, `new Boolean(false0)`, `undefined`
+- B: `0`, `new Number(0)`, `''`, `new Boolean(false)`, `undefined`
+- C: `0`, `''`, `new Boolean(false)`, `undefined`
 - D: All of them are falsy
 
 <details><summary><b>Answer</b></summary>