Fix typo in README: runnning -> running

[johandahlberg]

Description

Fixes a typo in the README installation section: runnning → running.

Type of change

• This change requires a documentation update

How Has This Been Tested?

Documentation-only change; no tests required.

PR checklist:

• This comment contains a description of changes (with reason).
• I have performed a self-review of my own code
• I have made corresponding changes to the documentation
• My changes generate no new warnings
• I have checked my code and documentation and corrected any misspellings

  

[github-actions]

All contributors have signed the CLA ✍️ ✅
_{Posted by the CLA Assistant Lite bot.}

[johandahlberg]

I am just playing around a bit with the cursor cloud agent, to see how it works.