Update install/README.md

Co-authored-by: Aurel Canciu <aurelcanciu@gmail.com>
Signed-off-by: raffis <raffael.sahli@doodle.com>

install/README.md

@@ -9,9 +9,8 @@ To install the latest release run:
 curl -s https://raw.githubusercontent.com/fluxcd/flux2/main/install/flux.sh | sudo bash
 ```
 
-**Note**: You may export an env `GITHUB_TOKEN` which is a [personal access token](https://docs.github.com/en/authentication/keeping-your-account-and-data-secure/creating-a-personal-access-token)
+**Note**: You may want to export the `GITHUB_TOKEN` environment variable using a [personal access token](https://docs.github.com/en/authentication/keeping-your-account-and-data-secure/creating-a-personal-access-token)
-to avoid running into Github API rate limiting while executing the install script.
+to avoid GitHub API rate-limiting errors if executing the install script repeatedly during a short time frame.
-This is recommended if you execute the install script multiple times within the same rate limting window.
 
 The install script does the following:
 * attempts to detect your OS