Adding a suggestion to Readme.md

[Akash3121]

trafficstars

If personal access token is not generated, then go to tokens and click on Generate new token to generate a new token and use it.

I wanna add this to the Installation step 4. Link: https://github.com/jstrieb/github-stats#installation

please assign this to me.

[Akash3121]

Please let me know if anyone has any questions related to this PR.