Update README.md

[Mozzy59]

Added a small note in README.md for testing contribution workflow.

[cb-heimdall]

🟡 Heimdall Review Status

Requirement	Status	More Info
Reviews	🟡 0/1	Denominator calculation Show calculation 1 if user is bot 0 1 if user is external 0 2 if repo is sensitive 0 From .codeflow.yml 1 Additional review requirements Show calculation Max 0 0 From CODEOWNERS 0 Global minimum 0 Max 1 1 1 if commit is unverified 0 Sum 1

[Mozzy59]

Hi Base team 👋
This is my first contribution to Base.
I added a small note in README.md for testing the contribution workflow
and to get familiar with the repo structure.
Looking forward to contributing more! 🚀