feat: nest add support (#67)

* feat: nest-add

Resolves #30

Author: santoshyadavdev

.gitignore

@@ -18,3 +18,7 @@ npm-debug.log
 # dist
 dist
 node_modules
+
+# schematics
+schematics/**/*.js
+schematics/**/*.d.ts

README.md

@@ -15,6 +15,7 @@ This provides a great way to quickly get up and running with prototypes and mock
 
 ## Installation
 
+### Option 1
 **With NPM**
 
 ```bash
@@ -27,6 +28,14 @@ $ npm i --save @nestjs-addons/in-memory-db
 $ yarn add @nestjs-addons/in-memory-db
 ```
 
+### Option 2
+
+The library support nest add command, you can run the below command to install and import the libary to root module.
+
+```bash
+nest add @nestjs-addons/in-memory-db
+```
+
 ## Video Walkthrough
 
 [![](http://img.youtube.com/vi/eSx6nKDw5PQ/0.jpg)](http://www.youtube.com/watch?v=eSx6nKDw5PQ 'NestJS Addons - In Memory DB - Walkthrough')