Rename folders with numbers and underscores

Author: remtaine

01 helloWorld/README.md renamed to 01_helloWorld/README.md

@@ -0,0 +1,5 @@
+const reverseString = function(str) {
+    let newStr = str.split("").reverse().join("");
+};
+
+module.exports = reverseString;

01 helloWorld/helloWorld.js renamed to 01_helloWorld/helloWorld.js

@@ -5,14 +5,14 @@ describe('reverseString', () => {
     expect(reverseString('hello')).toEqual('olleh');
   });
 
-  test.skip('reverses multiple words', () => {
+  test('reverses multiple words', () => {
     expect(reverseString('hello there')).toEqual('ereht olleh')
   })
 
-  test.skip('works with numbers and punctuation', () => {
+  test('works with numbers and punctuation', () => {
     expect(reverseString('123! abc!')).toEqual('!cba !321')
   })
-  test.skip('works with blank strings', () => {
+  test('works with blank strings', () => {
     expect(reverseString('')).toEqual('')
   })
 });