[guide] [es5] Update whitespace and missing function names.

Per https://github.com/airbnb/javascript/issues/55#issuecomment-214672292

es5/README.md

@@ -267,7 +267,7 @@
 
     ```javascript
     // anonymous function expression
-    var anonymous = function() {
+    var anonymous = function () {
       return true;
     };
 
@@ -277,9 +277,9 @@
     };
 
     // immediately-invoked function expression (IIFE)
-    (function() {
+    (function () {
       console.log('Welcome to the Internet. Please follow me.');
-    })();
+    }());
     ```
 
   - Never declare a function in a non-function block (if, while, etc). Assign the function to a variable instead. Browsers will allow you to do it, but they all interpret it differently, which is bad news bears.
@@ -417,7 +417,7 @@
 
     ```javascript
     // bad
-    function() {
+    function () {
       test();
       console.log('doing stuff..');
 
@@ -433,7 +433,7 @@
     }
 
     // good
-    function() {
+    function () {
       var name = getName();
 
       test();
@@ -449,7 +449,7 @@
     }
 
     // bad - unnecessary function call
-    function() {
+    function () {
       var name = getName();
 
       if (!arguments.length) {
@@ -462,7 +462,7 @@
     }
 
     // good
-    function() {
+    function () {
       var name;
 
       if (!arguments.length) {
@@ -517,7 +517,7 @@
 
       anonymous(); // => TypeError anonymous is not a function
 
-      var anonymous = function() {
+      var anonymous = function () {
         console.log('anonymous function expression');
       };
     }
@@ -635,10 +635,10 @@
     }
 
     // bad
-    function() { return false; }
+    function () { return false; }
 
     // good
-    function() {
+    function () {
       return false;
     }
     ```
@@ -768,17 +768,17 @@
 
     ```javascript
     // bad
-    function() {
+    function () {
     ∙∙∙∙var name;
     }
 
     // bad
-    function() {
+    function () {
     ∙var name;
     }
 
     // good
-    function() {
+    function () {
     ∙∙var name;
     }
     ```
@@ -847,14 +847,14 @@
 
     ```javascript
     // bad
-    (function(global) {
+    (function (global) {
       // ...stuff...
     })(this);
     ```
 
     ```javascript
     // bad
-    (function(global) {
+    (function (global) {
       // ...stuff...
     })(this);↵
     ↵
@@ -862,7 +862,7 @@
 
     ```javascript
     // good
-    (function(global) {
+    (function (global) {
       // ...stuff...
     })(this);↵
     ```
@@ -925,19 +925,19 @@
 
     // bad
     var obj = {
-      foo: function() {
+      foo: function () {
       },
-      bar: function() {
+      bar: function () {
       }
     };
     return obj;
 
     // good
     var obj = {
-      foo: function() {
+      foo: function () {
       },
 
-      bar: function() {
+      bar: function () {
       }
     };
 
@@ -1020,19 +1020,19 @@
 
     ```javascript
     // bad
-    (function() {
+    (function () {
       var name = 'Skywalker'
       return name
     })()
 
     // good
-    (function() {
+    (function () {
       var name = 'Skywalker';
       return name;
     })();
 
     // good (guards against the function becoming an argument when two files with IIFEs are concatenated)
-    ;(function() {
+    ;(function () {
       var name = 'Skywalker';
       return name;
     })();
@@ -1193,25 +1193,25 @@
 
     ```javascript
     // bad
-    function() {
+    function () {
       var self = this;
-      return function() {
+      return function () {
         console.log(self);
       };
     }
 
     // bad
-    function() {
+    function () {
       var that = this;
-      return function() {
+      return function () {
         console.log(that);
       };
     }
 
     // good
-    function() {
+    function () {
       var _this = this;
-      return function() {
+      return function () {
         console.log(_this);
       };
     }
@@ -1221,7 +1221,7 @@
 
     ```javascript
     // bad
-    var log = function(msg) {
+    var log = function (msg) {
       console.log(msg);
     };
 
@@ -1297,11 +1297,11 @@
       this.set('lightsaber', lightsaber);
     }
 
-    Jedi.prototype.set = function(key, val) {
+    Jedi.prototype.set = function set(key, val) {
       this[key] = val;
     };
 
-    Jedi.prototype.get = function(key) {
+    Jedi.prototype.get = function get(key) {
       return this[key];
     };
     ```
@@ -1343,12 +1343,12 @@
 
     ```javascript
     // bad
-    Jedi.prototype.jump = function() {
+    Jedi.prototype.jump = function jump() {
       this.jumping = true;
       return true;
     };
 
-    Jedi.prototype.setHeight = function(height) {
+    Jedi.prototype.setHeight = function setHeight(height) {
       this.height = height;
     };
 
@@ -1357,12 +1357,12 @@
     luke.setHeight(20); // => undefined
 
     // good
-    Jedi.prototype.jump = function() {
+    Jedi.prototype.jump = function jump() {
       this.jumping = true;
       return this;
     };
 
-    Jedi.prototype.setHeight = function(height) {
+    Jedi.prototype.setHeight = function setHeight(height) {
       this.height = height;
       return this;
     };
@@ -1404,7 +1404,7 @@
 
     ...
 
-    $(this).on('listingUpdated', function(e, listingId) {
+    $(this).on('listingUpdated', function (e, listingId) {
       // do something with listingId
     });
     ```
@@ -1417,7 +1417,7 @@
 
     ...
 
-    $(this).on('listingUpdated', function(e, data) {
+    $(this).on('listingUpdated', function (e, data) {
       // do something with data.listingId
     });
     ```
@@ -1435,7 +1435,7 @@
     ```javascript
     // fancyInput/fancyInput.js
 
-    !function(global) {
+    !function (global) {
       'use strict';
 
       var previousFancyInput = global.FancyInput;
@@ -1530,7 +1530,7 @@
   - **Yup.**
 
     ```javascript
-    function() {
+    function () {
       return true;
     }
     ```