docs: fix outdated GitHub labels documentation link
Summary
The GitHub documentation link for applying issue labels pointed to an outdated help.github.com URL. Updated it to the current docs.github.com equivalent.
Changes
Updated broken GitHub documentation link in README.
Why
New contributors rely on this link to correctly apply good first issue labels.
help.github.com redirects inconsistently and may fail depending on region.
Additional Context
This helps first-time contributors follow proper labeling guidelines.
@18jayanth is attempting to deploy a commit to the DeepSource Team on Vercel.
A member of the Team first needs to authorize it.
Can U please review My PR? and give me a comment !! it would really help me grow