Open your Joomla admin area->Menus->Main Menu.
Click on the New button.
Choose the Menu Item Type from the corresponding dialog. If you want to link a standard article pick the Single Article option.
Then enter the link title in the Menu Title field and select the corresponding article which will be linked through the Select Article functionality.
Save the changes and view the new menu item located on your frontend.
How to publish your article on the home page?
In order to make one of your articles the home page for the web site, navigate to the Joomla admin area->Menus->Main Menus.
Select the article and click on the Home icon.
The change of the default home page article will be confirmed with the following message:
One menu item successfully set to home
If you want to remove the old home page article, select it and click on the Trash button.