Update README.md

Author: Itaygli

README.md

@@ -23,10 +23,11 @@ In the future we will add more variants like React, Vue, etc.
 It's highly recommended to follow the build steps for setting up the sample app, including download the source code and built it manually.
 For those who need it, here is a [direct download link](https://www.overwolf.com/app/Overwolf-Sample_App) to the latest version on the store.
 
-### Load as unpackged extension.
+### Load as unpacked extension.
 
 You can load the native version of the sample app "as is", without any build process. Just download the repo and under Overwolf's settings, choose Support tab and then Development options. Click the Load unpacked button and choose the relevant folder of the native folder from the repository you just downloaded.
 
+* In order to load an app as "unpacked", you'll first have to be whitelisted as an Overwolf dev. More details on how to be whitelisted can be found [here](https://overwolf.github.io/docs/start/sdk-introduction#whitelist-as-a-developer)
 * To load the typescript version, first you should build it. More details on the readme page under the "ts" folder in this repo.
 
 ## Notes