Just been asked to take over a codeigniter website

Hi,

I've just been asked if I can take over maintenance of a website for a client. The website has been built using the CodeIgniter framework which I am not familiar with.

I know there is a help documentation but what is the quickest way to dive in and help my client? The first things they have asked for is to update a couple of pages with additional static content (a couple of paragraphs) and add a link to a document. These are the high priorities.

Next they want the site to undergo SEO.

Any advice, recommendations would be appreciated.

Regards,

Abbas