feat: add More info about Angular way deprecation

Author: shanmukhateja

demo/src/app/base-demo/base-demo.component.html

@@ -10,7 +10,7 @@ <h2 class="header center-on-small-only">{{pageTitle}}</h2>
 <div class="section" *ngIf="deprecated">
   <div class="section red white-text">
     <div class="container">
-      This section has been marked as deprecated. It is listed here for documentation purposes only.
+      This section has been marked as deprecated. It is listed here for documentation purposes only. <a routerLink="/faq">Read More</a>
     </div>
   </div>
 </div>

demo/src/assets/docs/faq.md

@@ -1,3 +1,13 @@
+> Deprecation of "Angular way" usage
+
+This was done to address few issues:
+
+1. The usage of `*ngFor` and setting AJAX callback's `data` property as empty, we're essentially tricking the library to consider "non-existent" data. (non-existent because AJAX callback is called with empty array and totalRecords* values don't match)
+
+2. It breaks DT extensions that perform additional data processing like exporting tabular data to a PDF or CSV, etc.
+
+We have introduced better ways to allow same level of control over rendering your data via [TemplateRef](https://l-lin.github.io/angular-datatables/#/advanced/using-template-ref) and [Pipes](https://l-lin.github.io/angular-datatables/#/advanced/using-pipe)
+
 > Error encountered resolving symbol values statically.
 
 Please update your `tsconfig.json` as shown below. For more info, check the GitHub issue [here](https://github.com/l-lin/angular-datatables/issues/937)