Update README.md

Author: theblushingcrow

README.md

@@ -83,7 +83,8 @@ function TodosComponent() {
 ```
 
 ## useComponentEffects
-To use an effect we first need to create it by using the `createEffect` function:
+To use an effect we first need to create it by using the `createEffect` function.
+This function takes a callback function which is passed an `Observable` parameter and returns an `Observable`. Every time the `effect` is called, the value is pushed into that `Observable`.
 
 ```ts
 import { createEffect } from '@ngneat/react-rxjs';
@@ -111,4 +112,4 @@ function SearchComponent() {
 We can pass multiple effects.
 
 
-<div>Icons made by <a href="https://www.freepik.com" title="Freepik">Freepik</a> from <a href="https://www.flaticon.com/" title="Flaticon">www.flaticon.com</a></div>
+<div>Icons made by <a href="https://www.freepik.com" title="Freepik">Freepik</a> from <a href="https://www.flaticon.com/" title="Flaticon">www.flaticon.com</a></div>