Update Readme.md

Author: EricBatlle

README.md

@@ -30,27 +30,87 @@ If you like my general work and contributions consider [sponsoring me on Github]
 
 But if you just want to donate straightforward, I also have [PayPal.me](https://paypal.me/EricBatlleClavero?locale.x=es_ES).
 
-## How to Use ⚙️
+## How to Install :hammer_and_wrench:	
+
+- If you want to install the the app, you can download the APK from [here](https://github.com/EricBatlle/UnityAndroidSpeechRecognizer/releases/download/v1.3/SpeechRecognizer_1.3.apk).
 
-If you want to test the app, you can download the APK from [here](https://github.com/EricBatlle/UnityAndroidSpeechRecognizer/releases/download/v1.2/SpeechRecognizer_1.2.apk).
+- If you want to install the whole project and check the code, you need to have **Unity** and **AndroidStudio** installed and updated.
 
-If you want to open the project and check the code, you need to have **Unity** and **AndroidStudio** installed and updated.
+- If you want to install only the few files to make the plugin work and don't want the whole project, you only need to import the package **SpeechRecognizer_pckg** located inside ``UnitySpeechRecognizer/Assets/``. To import it simply drag and drop the file in your current Unity project.
 
-If you want to scratch the code:
+## How to Use ⚙️
 
+#### How to use the Demo:
+- Functionality is simple, just press the **Start Listening button** and talk to your device to check the results! 
+- If you want to enable/disable continuous listening mode simply press the **Continous Listening checkmark**.
+- You can also stop the current recongizer by pressing the **Stop Listening button**.
+- Set the language of the recognizer or the maximum results you want that the recognizer retrieves.
+
+#### How to use the Plugin:
+
+To call the plugin you first need  a variable to reference it:
+```csharp
+private SpeechRecognizerPlugin plugin = null;
+```
+Then you have to create a new platform-specific instance by calling:
+```csharp
+plugin = SpeechRecognizerPlugin.GetPlatformPluginVersion(this.gameObject.name);
+```
+Notice that ``this.gameObject.name`` is the name of the GameObject that will have the plugin callback methods to retrieve the recognition results and errors.
+To create those callbacks you need to add and implement the Interface ```ISpeechRecognizerPlugin``` on the same GameObject. A common implementation of the interface will be:
+```csharp
+public void OnResult(string recognizedResult)
+{
+    char[] delimiterChars = { '~' };
+    string[] results = recognizedResult.Split(delimiterChars);
+
+    //Do something with the results
+}
+
+public void OnError(string recognizedError)
+{
+    ERROR error = (ERROR)int.Parse(recognizedError);
+    switch (error)
+    {
+        case ERROR.UNKNOWN:
+            Debug.Log("<b>ERROR: </b> Unknown");
+            break;
+        case ERROR.INVALID_LANGUAGE_FORMAT:
+            Debug.Log("<b>ERROR: </b> Language format is not valid");
+            break;
+        default:
+            break;
+    }
+}
+```
+From so on every time you want to call any plugin feature you only have to call it like any other object:
+
+Do you want to start the recognition?
+```csharp
+plugin.StartListening();
+```
+Do you want to stop it?
+```csharp
+plugin.StopListening();
+```
+Do you want to start the recognition with continous recognition and specific language?
+```csharp
+plugin.StartListening(true, "es-ES");
+```
+
+#### How to scratch the code:
 - To check **Unity** project, **open the project**, select **SpeechRecognizer** scene.
 Either inside the unity project or simply dragging the **.cs** classes on your editor, you have to watch on to the classes located on ``UnitySpeechRecognizer/Assets/Scripts``. 
 - To check **Android Plugin** you can do it opening the solution with **AndroidStudio** or just drag the ``SpeechRecognizerFragment.java`` class located on ``UnitySpeechRecognizerPlugin\SpeechRecognizer\src\main\java\com\example\eric\unityspeechrecognizerplugin``
 
-Functionality is simple, just press the checkmark if you want to enable/disable continuous listening mode, press Start listening and talk to your device to check the results!
 
-#### Multiple plugins support 🔌
+## Multiple plugins support 🔌
 This plugin has been made following a **fragment-pattern** to avoid errors that can be derived from extending *UnityPlayerActivity*.
 
 This way you can integrate this plugin with your projects even if they already have more plugins. **Truly pluggable**.
 
-#### Upgrading dependencies 📜
+## Upgrading dependencies 📜
 
-Keep in mind that the actual release ([v1.2](https://github.com/EricBatlle/UnityAndroidSpeechRecognizer/releases/tag/v1.2)) of the plugin works with **AndroidX** dependencies. That means that is targeting **Android 9** (API level 28).
+Keep in mind that the actual release ([v1.3](https://github.com/EricBatlle/UnityAndroidSpeechRecognizer/releases/tag/v1.3)) of the plugin works with **AndroidX** dependencies. That means that is targeting **Android 9** (API level 28).
 
-If you want to target older versions I recommend to use the old version of the plugin ([v1.0]((https://github.com/EricBatlle/UnityAndroidSpeechRecognizer/releases/tag/v1.0))) that works with **Android Support v4**. You can download the old plugin source code and APK from [here](https://github.com/EricBatlle/UnityAndroidSpeechRecognizer/releases/tag/v1.0).
+If you want to target older versions I recommend to use the old version of the plugin ([v1.0]((https://github.com/EricBatlle/UnityAndroidSpeechRecognizer/releases/tag/v1.0))) that works with **Android Support v4**. *But remember that some features like specify recognition language aren't available for the moment.* You can download the old plugin source code and APK from [here](https://github.com/EricBatlle/UnityAndroidSpeechRecognizer/releases/tag/v1.0).