Add seed script for dev environment

[aayushpagare21-compcoder]

Describe the improvement you are suggesting in detail

• For dev environment when the server is started, need some dummy data to work on.
• Try to keep the data as meaningful as possible. Please do not upsert Lorem Ipsum
• Write a seed script and also add a command seed-all in package.json
• update the readme.md

Additional Information & Alternatives (optional)

none

Do you want to work on this improvement?

No

Please check the boxes that apply to this improvement suggestion.

• I have searched the existing issues and improvement suggestions to avoid duplication.
• I have provided a clear description of the improvement being suggested.
• I have explained the rationale behind this improvement.
• I have included any relevant technical details or design suggestions.
• I understand that this is a suggestion and that there is no guarantee of implementation.