CSP-TGResources-added Facebook, linkedin

cur/teaching-guide/resources/tg-resources.html

@@ -175,6 +175,8 @@ <h3>Greater BJC Community Resources<a class="anchor" id="community">&nbsp;</a></
                             <li><a href="https://www.youtube.com/user/drdanielgarcia" title="Dan Garcia YouTube Channel" target="_blank">Dan Garcia YouTube Channel</a> - BJC lectures University of California, Berkeley</li>
 					        <li><a href="https://www.youtube.com/user/jmoenig" title="Jens Mönig's YouTube Channel" target="_blank">Jens Mönig's YouTube Channel</a> - from the creator of Snap<em>!</em></li>
                             <li><a href="https://www.instagram.com/cspbjc/" title="BJC CSP Instagram" target="_blank">BJC CSP Instagram</a></li>
+                            <li><a href="https://www.facebook.com/cspbjc/" title="BJC CSP Facebook" target="_blank">BJC CSP Facebook</a></li>
+                            <li><a href="https://www.linkedin.com/company/cspbjc/" title="BJC CSP LinkedIn" target="_blank">BJC CSP LinkedIn</a></li>
                             <li><strong><a href="#hint-videos" data-toggle="collapse" class="collapsed expansion-menu" title="Videos from past versions of the BJC course">Videos from past versions of the BJC course</a></strong>
                                 <div id="hint-videos" class="collapse">
                                     <ul>