Fix indexing issues

Remove index from the values

ix use of occursin instead of in

Update Tweet bot to handle double posting case

Bump post to slack to Julia 1.7

Switch back to Cron job instead of debug push

Remove just the first index for the link and title

Add using Twitter

Make sure the right file is being called

Pass in ENV vars as CLA's

Update readme to reflect the Twitter functionality

Bump Julia version to 1.7 since 1.6 errors out

Put Julia version in quotes

Switch each step to only have 1 uses or run

Add back the -