Replace BBG logo with USAGM.

opentech/static_src/src/sass/public/layout/_footer.scss

@@ -67,7 +67,8 @@
     &__credits {
         display: flex;
         align-items: center;
+        justify-content: space-between;
         flex-wrap: wrap;
-        margin: 3rem 0 0;
+        margin: 3rem 0;
     }
 }

opentech/templates/base.html

@@ -191,12 +191,12 @@
                         <a class="button button--transparent--wide" href="https://run.ooni.io/nettest?tn=web_connectivity&ta=%7B%22urls%22%3A%5B%22https%3A%2F%2Fwww.opentech.fund%2F%22%5D%7D&mv=1.2.0">Run OONI!</a>
 
                         <div class="footer__credits">
-                            <a href="https://www.bbg.gov/" aria-label="Link to the Broadcasting Board of Governors website">
-                                <svg class="icon icon--footer-credit"><use xlink:href="#bbg-logo"></use></svg>
+                            <a href="https://www.usagm.gov/" aria-label="Link to the U.S. Agency for Global Media website">
+                                <img src="{% static 'images/usagm.png' %}" width="201" height="61" alt="Logo for the U.S. Agency for Global Media">
                             </a>
 
                             <a href="https://www.rfa.org/english/" aria-label="Link to the Radio Free Asia website">
-                                <img src="{% static 'images/radio-free-asia-logo.svg' %}" alt="logo fo radio free asia">
+                                <img src="{% static 'images/radio-free-asia-logo.svg' %}" width="144" height="61" alt="Logo for Radio Free Asia">
                             </a>
                         </div>
                 </div>