Structure Changes and additional tags added

Author: sankarsuda

.gitignore

@@ -1,3 +1,4 @@
 composer.lock
 *~
 vendor/
+.DS_Store

Mobtexting/DialPlan/BasicAttribute.php

@@ -1,2 +1,170 @@
 # mobtexting-php
+
 PHP sdk for mobtexting
+
+## Installation
+
+You can install **mobtexting-php** via composer or by downloading the source.
+
+#### Via Composer:
+
+**mobtexting-php** is available on Packagist as the
+[`mobtexting/voice-sdk`](http://packagist.org/packages/mobtexting/voice-sdk) package.
+
+## Quickstart
+
+### Generating JSON
+
+To control phone calls, your application needs to output [JSON] response. Use `Mobtexting\Voice` to easily create such responses.
+
+```php
+<?php
+$response = new Mobtexting\Voice();
+$response->answer();
+$response->say('Hello');
+$response->play('https://domain.com/cowbell.mp3');
+print $response;
+```
+
+That will output JSON that looks like this:
+
+```json
+[
+  {
+    "Answer": {
+      "delay": 0
+    }
+  },
+  {
+    "SayText": {
+      "language": "EN",
+      "engine": "polly",
+      "message": "Hello"
+    }
+  },
+  {
+    "Play": {
+      "type": "mp3",
+      "path": "https://domain.com/cowbell.mp3"
+    }
+  }
+]
+```
+
+# Commands
+
+```shell
+ - answer
+ - delay
+ - conference
+ - email
+ - filter
+ - hangup
+ - play
+ - record
+ - repeat
+ - say
+ - sayDateTime
+ - sayNumber
+ - sayPin
+ - url
+```
+
+### Answer
+
+The `Answer` tag answers the call. One call answers billing will get started.
+You can't nest any other tags inside this `Answer` Tag
+
+_Attributes_
+
+`Answer` tag allows following attributes.
+
+* `delay` no of seconds delay the call before answer.
+
+### Delay
+
+The `Delay` tag will allow you to wait the call before going to next tag.
+
+_Attributes_
+
+`Delay` tag allows the following attributes.
+
+* `seconds` no of seconds to delay
+
+### `Say` tag
+
+# Nested tags
+
+Some times we have to nest the tags within other tag.
+
+Following tags allow nested tags
+
+```
+- menu
+- url
+- filter
+```
+
+### Example of filter tag with nested tags
+
+```php
+  $response = new Mobtexting\Voice();
+  $response->answer();
+  $response->say('Hello');
+
+  $filter = $response->filter([10]);
+  $filter->onFail('hangup');
+  $url = $filter->onPass('Url')->setUrl('google.com');
+  $url->onResponse('*', 'hangup');
+  $url->onResponse('x', 'hangup');
+
+  echo $response;
+```
+
+### Response
+
+```json
+[
+  {
+    "Answer": {
+      "delay": 0
+    }
+  },
+  {
+    "SayText": {
+      "language": "EN",
+      "engine": "polly",
+      "message": "Hello"
+    }
+  },
+  {
+    "Filter": {
+      "onpass": {
+        "Url": {
+          "method": "get",
+          "url": "google.com",
+          "response": {
+            "*": {
+              "Hangup": {
+                "reason": 16
+              }
+            },
+            "x": {
+              "Hangup": {
+                "reason": 16
+              }
+            }
+          }
+        }
+      },
+      "onfail": {
+        "Hangup": {
+          "reason": 16
+        }
+      },
+      "type": "frequency",
+      "unit": [10]
+    }
+  }
+]
+```