Homepage updates before INN at Home

Change text at https://github.com/INN/inn/blob/dddc88301cde2fd33a38ff5aa64a3ebe74d83923/homepages/templates/inn.php#L110 to "INN supports more than 200 nonprofit newsrooms across the U.S., working to strengthen the sources of trusted news for thousands of diverse communities"
Remove https://github.com/INN/inn/blob/master/homepages/templates/inn.php#L228

INN / umbrella-inndev