Front end login is the login button towards the bottom of your website. Its only used for 2 purpouses:

1. To change in the current text in articles. It can be a spelling mistake, some facts that has changed or if you want to add more text to some of the existing articles
   
   
2. To add News articles to your website. Its only for news and not other kind of articles. The only expeption is dappzambia who can add "news" and "projects" as their setup is slightly different

In this video we will show you how you do the first point: changing in current texts on your website using the Joomla Front End login