diff --git a/README.md b/README.md
index 6970817..4191418 100644
--- a/README.md
+++ b/README.md
@@ -1,10 +1,13 @@
 # xlink-sdk
 
-## How to install the privately published package
+## How to install the privately published package from GitHub Package Registry
 
-1. [Authenticating to GitHub Packages](https://docs.github.com/en/packages/working-with-a-github-packages-registry/working-with-the-npm-registry#authenticating-to-github-packages)
-2. Add a `.npmrc' file to the project that needs to install this package
+1. Follow the guide [Authenticating to GitHub Packages](https://docs.github.com/en/packages/working-with-a-github-packages-registry/working-with-the-npm-registry#authenticating-to-github-packages) to create a personal access token
+
+2. Add a `.npmrc` file to the project that needs to install this package (the `GITHUB_NPM_KEY' is an environment variable, which is the personal access token created in the previous step)
     ```
     @xlink-network:registry=https://npm.pkg.github.com
+    //npm.pkg.github.com/:_authToken=${GITHUB_NPM_KEY}
     ```
+
 3. Run `npm install`
\ No newline at end of file