feat: added a popup which displays the valid rules of a username while signing up #2629

	name: Greet User on Contribution

	on:
	pull_request:
	types: [opened, reopened, synchronize]
	push:
	branches:
	- master,main

	jobs:
	greet:
	runs-on: ubuntu-latest

	steps:
	- name: Checkout code
	uses: actions/checkout@v2

	- name: Greet User
	run: \|
	echo "Hello ${{ github.actor }}! Thank you for contributing to our project.We'll have a look asap!"

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