From the ios 6 manual...which was gears towards the iPhone 5, but should help.
“Use Reading List to collect webpages and read them later:
Add the current webpage: Tap , then tap “Add to Reading List.” With iPhone*4 or later, the webpage is saved as well as the link, so you can read it even when you can’t connect to the Internet.
Add the destination of a link: Touch and hold the link, then tap “Add to Reading List.”
“View your reading list: Tap , then tap Reading List.
Delete an item from your reading list:* Swipe the item, then tap Delete.”
Excerpt From: Inc, Apple. “iPhone User Guide For iOS 6.” Apple Inc., 2012. iBooks.
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https://itunes.apple.com/us/book/iphone-user-guide-for-ios-6/id563272542?mt=11