Build a Website

I have a wordpress website I am setting up hosted on digital Ocean. I have been trying to install a plugin but the install limit is set at 2mb and my plugin is more like 4. I need someone to edit the PHP settings for the site to change the upload limit from 2mb to something more like 10mb. - I am not very good on the back end and I can't figure it out, but I need to get this site done to launch my business!