update links to recommended practices

Author: wd15

_includes/navbar.html

@@ -17,6 +17,7 @@
           <i class="medium material-icons">home</i>
       </a></li>
       <li><a href="{{ site.baseurl }}/simulations" class="navbar-text">Benchmarks</a></li>
+      <li><a href="https://pages.nist.gov/pf-recommended-practices" class="navbar-text">Recommended Practices</a></li>      
       <li><a href="{{ site.links.wiki }}" class="navbar-text">Wiki</a></li>
       <li>
         <a href="{{ site.baseurl }}/ABOUT"

_includes/wiki-nav.html

@@ -4,6 +4,6 @@ <h5> Wiki Links </h5>
   <li><a class="truncate" href="{{ site.links.wiki }}/Home#Workshops">Workshops</a></li>
   <li><a class="truncate" href="{{ site.links.wiki }}/Home#phase-field-benchmark--pfhub-publications">Publications</a></li>
   <li><a class="truncate" href="{{ site.links.wiki }}/Peter-Voorhees-Lectures">Phase Field Lectures</a></li>
-  <li><a class="truncate" href="{{ site.links.wiki }}/Phase-Field-Method-Best-Practices">Best Practices Guide</a></li>
+  <li><a class="truncate" href="https://pages.nist.gov/pf-recommended-practices/">Recommended Practices Guide</a></li>
   <li><a class="truncate" href="{{ site.links.wiki }}/Home#citing-pfhub">Citing PFHub</a></li>
 </ul>

index.html

@@ -31,7 +31,11 @@
           anywhere <a href="{{ site.baseurl
           }}/ABOUT/#advanced-users" data-proofer-ignore>in-between</a>, you'll find a community
           built around a shared interest in phase-field and a commitment to
-          opening up our research for the benefit of all.
+          opening up our research for the benefit of all. Also, we have a
+	  <a href="https://pages.nist.gov/pf-recommended-practices"
+	  data-proofer-ignore>recommended practices guide</a> under
+	  construction.
+
         </p>
       </div>
     </div>