feat: 초기 프로젝트 설정 및 룰.md 파일 추가

api.hyungi.net/node_modules/validator/es/lib/unescape.js

@@ -0,0 +1,8 @@
+import assertString from './util/assertString';
+export default function unescape(str) {
+  assertString(str);
+  return str.replace(/&quot;/g, '"').replace(/&#x27;/g, "'").replace(/&lt;/g, '<').replace(/&gt;/g, '>').replace(/&#x2F;/g, '/').replace(/&#x5C;/g, '\\').replace(/&#96;/g, '`').replace(/&amp;/g, '&');
+  // &amp; replacement has to be the last one to prevent
+  // bugs with intermediate strings containing escape sequences
+  // See: https://github.com/validatorjs/validator.js/issues/1827
+}