Update readme for including mydatepicker in project

[cvetkovski]

The import line is incorrect, it should be:
import {MyDatePickerModule} from 'mydatepicker/src/my-date-picker/my-date-picker.module';

and the module should also be included:

@NgModule({
  declarations: [
    AppComponent
  ],
  imports: [
    MyDatePickerModule
  ],
  providers: [],
  bootstrap: [AppComponent]
})

[akmittal]

Change has been made. Thanks for pointing is out.

[Seville]

Please update the readme. I actually checked the path before I included it in my module file, the path didn't point to the correct place. Thanks