docs: correct the build instructions

packages/opentelemetry-browser-extension-autoinjection/README.md

@@ -24,13 +24,13 @@ This browser extension allows you to inject [OpenTelemetry](https://opentelemetr
 Run the following in your shell to download and build the extension from source:
 
 ```shell
-git clone https://github.com/svrnm/opentelemetry-browser-extension
-cd opentelemetry-browser-extension
+git clone https://github.com/open-telemetry/opentelemetry-js-contrib.git
+cd opentelemetry-js-contrib/packages/opentelemetry-browser-extension-autoinjection
 npm install
-npm run compile
+npm run build
 ```
 
-This will create a so called unpacked extension into the `build/` folder you now can load into your browser: 
+This will create a so-called unpacked extension into the `build/` folder you now can load into your browser: 
 
 * Open a new browser window and go to chrome://extensions
 * Turn on "Developer Mode"
@@ -58,4 +58,4 @@ Click on `Save & Reload`, check the developer toolbar to see how spans being are
 
 3. Firefox support is unstable, sometimes it works, sometimes not. If you have experience building extensions for firefox, please reach out.
 
-4. The website you are targeting with this extension might have a [Content Security Policy](https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Content-Security-Policy) (CSP) in place and block the extension from injecting javascript or block the exporters from sending spans to a collector. To work around this limitation, you need another browser extension, that allows you to disable CSP for a website.
+4. The website you are targeting with this extension might have a [Content Security Policy](https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Content-Security-Policy) (CSP) in place and block the extension from injecting javascript or block the exporters from sending spans to a collector. To work around this limitation, you need another browser extension, that allows you to disable CSP for a website.