Document 'debounceDelay' option and cleanup documentation

Author: mpalourdio

README.MD

@@ -17,27 +17,23 @@ $ npm install ng-http-loader --save
 ## What does it do ?
 
 This package provides an HTTP Interceptor, and a spinner component (All from [SpinKit](https://github.com/tobiasahlin/SpinKit) at the moment).
-The HTTP interceptor listens to all HTTP requests and shows a spinner during pending requests.
+The HTTP interceptor listens to all HTTP requests and shows a spinner / loader indicator during pending http requests.
 
 ## Angular 4 / Angular 5
 
-The latest compatible module version with angular 4 is **``0.3.4``**.
-If you want to use Angular 5, use **``^0.5.0``**.
+The latest module version compatible with angular 4 is **``0.3.4``**.
+If you want to use Angular 5, use versions **``0.4.0``** and above.
 
 If you experience errors like below, **please double check the version you use.**
 
 ``ERROR in Error: Metadata version mismatch for module [...]/angular/node_modules/ng-http-loader/ng-http-loader
-  .module.d.ts, found version 4, expected 3, resolving symbol AppModule in [...]/angular/src/app.module.ts``
-  
+  .module.d.ts, found version x, expected y, resolving symbol AppModule in [...]/angular/src/app.module.ts``
 
-## Requirements
+## Requirements - HttpClientModule
 
-Compatible with Angular 4.3+. Performing http requests with the new API from ``HttpClientModule`` is **mandatory**. Otherwise,
-the spinner will not be fired **at all**.
+Performing http requests with the ``HttpClientModule`` API is **mandatory**. Otherwise,the spinner will not be fired **at all**.
 
-## HttpClientModule
-
-All http requests **MUST** be performed with the new ``HttpClientModule`` available from ``angular 4.3``. See this [blog post](http://blog.ninja-squad.com/2017/07/17/http-client-module/) as reference.
+See this [blog post](http://blog.ninja-squad.com/2017/07/17/http-client-module/) for an ``HttpClientModule`` introduction.
 
 ## Usage
 
@@ -93,19 +89,24 @@ import { NgHttpLoaderServicesModule } from 'ng-http-loader/services/ng-http-load
 export class AppModule { }
 ```
 
-In your app.component.html, add :
+In your app.component.html, simply add :
 ```xml
 <spinner></spinner>
 ```
 
 ## Customizing the spinner
 
-You can customize the background-color and the spinner type:
+You can customize the **background-color**, the **spinner type** and the **debounce delay** (ie. after how many milliseconds the spinner will be displayed, if needed):
 ```xml
-<spinner [backgroundColor]="'#ff0000'" [spinner]="spinkit.skWave"></spinner>
+<spinner 
+    [backgroundColor]="'#ff0000'"
+    [spinner]="spinkit.skWave"
+    [debounceDelay]="200"
+>
+</spinner>
 ```
 
-**_To use this syntax, you must reference the ``Spinkit`` const as a public property in you app.component.ts_**:
+**_To use this syntax, you must reference the ``Spinkit`` const as a public property in your app.component.ts_**:
 
 ```typescript
 import { Spinkit } from 'ng-http-loader/spinkits'; <============
@@ -131,13 +132,9 @@ The different spinners available are referenced in [this class](src/spinkits.ts)
 
 ## Requests filtering
 
-You can filter the requests that shouldn't be caught by the interceptor by providing **an array of regex patterns**:
+You can also filter the http requests that shouldn't be caught by the interceptor by providing **an array of regex patterns**:
 ```xml
-<spinner 
-    [backgroundColor]="'#ff0000'"
-    [spinner]="spinkit.skWave"
-    [filteredUrlPatterns]="['\\d', '[a-zA-Z]', 'my-api']">
-</spinner>
+<spinner [filteredUrlPatterns]="['\\d', '[a-zA-Z]', 'my-api']"></spinner>
 ```
 
 ## Misc
@@ -146,4 +143,4 @@ Each Spinkit component defined in [SPINKIT_COMPONENTS](src/spinkits.ts#L30) can
 
 ## Credits
 
-The spinners/loaders have been taken from [SpinKit](https://github.com/tobiasahlin/SpinKit).
+[Tobias Ahlin](https://github.com/tobiasahlin), the awesome creator of [SpinKit](https://github.com/tobiasahlin/SpinKit).