Configuring SSL in WordPress
In this example we will be using the plugin Really Simple SSL.
Access the plugins option
Inside wp-admin go to Plugins > Add New.
Searching for the plugin
On the search field, look for Really simple SSL and hit Install Now.
Click on Activate.
Now click on Go ahead, activate SSL!.
If you find any troubles after the activation of the plugin, please check if the certificate is correctly installed and use Ctrl + F5 to force access with no cache to the website, or use a private tab.