Discord room updated in welcome/index.html when init core

[lucaslaurent04]

When init core package, the equal discord room id is modified to BNCPYxD9kk in index.html

equal/public/welcome/index.html

Line 139 in 6feca3a

<div style="margin: 10px;"><a href="https://discord.gg/xNAXyhbYBp" target="_blank">Discord</a></div>

But it seems that the room BNCPYxD9kk is not valid, should we replace BNCPYxD9kk in the code by xNAXyhbYBp

BNCPYxD9kk is used in:

• packages/core/apps/discord.php
• CONTRIBUTING.md