diff --git a/PLAYBOOK-NEST.md b/PLAYBOOK-NEST.md
index 180a4b309..2e83555b3 100644
--- a/PLAYBOOK-NEST.md
+++ b/PLAYBOOK-NEST.md
@@ -3,6 +3,8 @@ DIY NestJS Playbook
 
 creating NestJS project and generate nest artifacts with-in monorepo.
 
+> An Introduction to [NestJS](https://www.joshmorony.com/an-introduction-to-nestjs-for-ionic-developers/)
+
 ### Prerequisites  
 
 #### Install Global Packages
diff --git a/PLAYBOOK.md b/PLAYBOOK.md
index a3c2d6376..27fb90c1e 100644
--- a/PLAYBOOK.md
+++ b/PLAYBOOK.md
@@ -101,7 +101,7 @@ ng update --all
 # also run `npm outdated` and update versions in package.json then run `npm install`
 
 # generate webapp app
-ng g app webapp --routing --style=scss --prefix=ngx --tags=app-module
+ng g app webapp --routing --style=scss --prefix=ngx --unit-test-runner=jest --tags=app-module
 
 # add Jest to replace karma as testing framework
 ng generate jest
diff --git a/apps/api/src/core/interceptors/transform.interceptor.ts b/apps/api/src/core/interceptors/transform.interceptor.ts
index 85d77bf08..dbb50ae80 100644
--- a/apps/api/src/core/interceptors/transform.interceptor.ts
+++ b/apps/api/src/core/interceptors/transform.interceptor.ts
@@ -3,13 +3,9 @@ import { Observable } from 'rxjs';
 import { map } from 'rxjs/operators';
 import { classToPlain } from 'class-transformer';
 
-export interface Response<T> {
-  data: T;
-}
-
 @Injectable()
-export class TransformInterceptor<T> implements NestInterceptor<T, Response<T>> {
-  intercept(context: ExecutionContext, call$: Observable<T>): Observable<Response<T>> {
-    return call$.pipe(map((data: Observable<T>) => classToPlain(data, { excludePrefixes: ['_id'] })));
+export class TransformInterceptor implements NestInterceptor {
+  intercept(context: ExecutionContext, call$: Observable<any>): Observable<any> {
+    return call$.pipe(map(data => classToPlain(data, { excludePrefixes: ['_id'] })));
   }
 }
diff --git a/stories/faq.md b/stories/faq.md
index 2ac2daf67..2ead8c92e 100644
--- a/stories/faq.md
+++ b/stories/faq.md
@@ -59,6 +59,7 @@ once you are conferable , then you can delete demo `default` app
 > Read [medium-clap](https://medium.com/@yonatandoron/how-i-implemented-the-medium-clap-from-scratch-4a16ac90ad3b)
 > Read [Must-have animations for Chatbots](https://uxdesign.cc/must-have-animations-for-chatbots-15c031fd6bd3)
 > Read [The ultimate guide to proper use of animation in UX](https://uxdesign.cc/the-ultimate-guide-to-proper-use-of-animation-in-ux-10bd98614fa9)
+> Read [Microinteractions: small details matter](https://uxdesign.cc/microinteractions-detailed-design-9113c88946d0)
 
 *  Why I Prefer NGXS over NGRX 
 > Read [NGXS vs NGRX](https://blog.singular.uk/why-i-prefer-ngxs-over-ngrx-df727cd868b5?gi=405262c5a9c5)
@@ -151,6 +152,10 @@ semantic-release is a fully automated library/system for versioning, changelog g
 > Refer [Example 1](https://github.com/angular-university/angular-material-course/tree/2-data-table-finished/src/app/course)
 > Refer [Example 2](https://github.com/angular/material2/blob/master/src/material-examples/table-http/table-http-example.ts)
 
+* How to setup NestJS Project?
+
+> Refer [An Introduction to NestJS](https://www.joshmorony.com/an-introduction-to-nestjs-for-ionic-developers/)
+
 * Shoud I use mergeMap or  concatMap or switchMap or forkJoin for my usecase? 
 
 > *Short Answer*: concatMap for writes, mergeMap for reads, switchMap when you have to cancel http call.