fix(guide): simplify directory structure

guide/english/javascript/standard-objects/json/json-arrays/index.md

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+---
+title: JSON Arrays
+---
+## JSON Arrays
+
+JSON Arrays are no different from normal array object that you use in Javascript. Its an array object which contains multiple `JSON Objects`.
+
+Here is an example of a JSON Array:
+
+```Javascript
+    var aMyPlaylist = [{
+        artist: "Ed Sheeran",
+        track: "Supermarket flowers",
+        myRating: 10
+    }, {
+        artist: "Tracy Chapman",
+        track: "Fastcar",
+        myRating: 9
+    }];
+```
+
+This is an JSON Array named as `aMyPlaylist`. All array methods like `map`, `filter`, `sort` etc. can be applied on any JSON Array as well
+
+#### More Information:
+
+More array methods can be found in following links
+ - <a href='https://guide.freecodecamp.org/javascript/standard-objects/array' target='_blank' rel='nofollow'>Array - Freecodecamp</a>
+ - <a href='https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array' target='_blank' rel='nofollow'>Array - Mozilla Developer Network</a>