clickable links

[epugh]

Make the community links on https://lucene.apache.org/solr/community.html#slack actually clickable!

[janhoy]

Looks good.
I notice that the Slack URLs are to invite links. They assume you are not already a member, and if so you are not taken to the slack channel if you click. Should we have one direct link and another "sign up" link to make it clear?

[epugh]

Looks good.
I notice that the Slack URLs are to invite links. They assume you are not already a member, and if so you are not taken to the slack channel if you click. Should we have one direct link and another "sign up" link to make it clear?

Done! I'm a bit nervous to merge these changes, do you want the honors of the merge?

[janhoy]

No prob, the changes will end up on https://lucene.staged.apache.org/solr/community.html#mailing-lists-irc first, so it is easy to check if it worked before merging to production branch. I just merged this, and looks good. I think still some minor cleanups to do, perhaps also add separate Slack and signup links for the othe channels. But Good for now. I'll create a merge to prod PR.