You'll have to do a few things:
1. Open your qa-theme/<your-current-theme>/qa-theme.php file
2. Most likely there is not a doctype() function so add this one to it:
function doctype() {
qa_html_theme_base::doctype();
if (isset($this->content['feed'])) {
$this->content['navigation']['footer']['feed'] = $this->content['feed'];
}
}
3. Same thing with the feed() function (which is a bit empty for your case):
function feed() {}
This will display the RSS link with the same content as before but in your footer. EG: It will say "Recent activity" if you're in the "All activity" section. So if you want to override the text of the link so that it becomes "RSS" as in your screenshot you should change the step 2 for this step:
2. Most likely there is not a doctype() function so add this one to it:
function doctype() {
qa_html_theme_base::doctype();
if (isset($this->content['feed'])) {
$this->content['navigation']['footer']['feed'] = array(
'url' => $this->content['feed']['url'],
'label' => 'RSS',
);
}
}