Update README.md | Please add this under gssoc label level 1

[samyakmaitre]

Related Issue

I have added some common issues that can happen.

Description

Mentioned what to avoid during the steps towards contributing

Type of PR

• [ ] Bug fix
• [ ] Feature enhancement
• [X] Documentation update
• [ ] Other (specify): ___

Screenshots / videos (if applicable)

[Attach any relevant screenshots or videos demonstrating the changes]

Checklist:

• [X] I have performed a self-review of my code
• [X] I have read and followed the Contribution Guidelines.
• [X] I have tested the changes thoroughly before submitting this pull request.
• [X] I have provided relevant issue numbers, screenshots, and videos after making the changes.
• [X] I have commented my code, particularly in hard-to-understand areas.

Additional context:

[Include any additional information or context that might be helpful for reviewers.]