To make a link that refreshes the current page you can use the code below:
<a href="#" onclick="location.reload(true)">refresh</a>
This link will appear like this:
I found at some point in the past that this didn't always work, so instead you can ask the browser to load the current page. This method is not recommended, however, as it should show you a local cache of the page.
<a href="#" onclick="history.go(0)">refresh</a>
This link will appear as below: