Fix links

Author: XhmikosR

lib/helpers.js

@@ -157,9 +157,9 @@ e.footer = (lastUpdated) => `
 
 Stay safe. Stay inside.
 
-Code: https://github.com/sagarkarira/coronavirus-tracker-cli/
-Twitter: http://twitter.com/ekrysis
+Code: https://github.com/sagarkarira/coronavirus-tracker-cli
+Twitter: https://twitter.com/ekrysis
 
 Last Updated on: ${moment(lastUpdated).utc().format('DD-MMM-YYYY HH:MM')} UTC
 
-`;
+`;