By default WordPress RSS feed include only posts not pages. WordPress lets you change post RSS settings to send full blog post or just a summary in your feeds. This tutorial is about a simple WordPress plugin that lets you modify RSSfeeds to include pages and posts both in your feeds.
Only thing you have to do is install and activate RSS Includes Pages plugin and you are done, it automatically includes all your pages in your blog’s feed. Deactivating the plugin restores your RSS feed to default.
Remember if you’re using Feedburner then you will have to wait till it picks your new updated feed because until Feedburner picks up your RSS feeds you won’t be seeing your pages on your RSS feed for some time. You don’t need to worry about it, just wait for few hours.