Small grpc.io improvements (grpc#553)

* fix typo

* fix wording

* order by importance

Author: jtattermusch

_includes/footer.html

@@ -12,7 +12,7 @@
                     <li><a href="{{ site.baseurl }}/docs/quickstart"><p>Quick Start</p></a></li>
                     <li><a href="{{ site.baseurl }}/docs/guides"><p>Guides</p></a></li>
                     <li><a href="{{ site.baseurl }}/docs/tutorials"><p>Tutorials</p></a></li>
-                    <li><a href="{{ site.baseurl }}/docs/reference"><p>Reference APIs</p></a></li>
+                    <li><a href="{{ site.baseurl }}/docs/reference"><p>API Reference</p></a></li>
                 </ul>
             </div>
             <hr class="footer-sections" />

about/index.html

@@ -39,7 +39,7 @@ <h6 class="core-features-title">Core Features that make it awesome:</h6>
 <div class="col-md-11 nofloat center-block">
 <div class="col-sm-12">
     <section class="about-sections case-studies">
-        <h5 class="about-max">Cases: Who’s using them and why? </h5>
+        <h5 class="about-max">Cases: Who’s using it and why? </h5>
         <p class="about-max">Many companies are already using gRPC for connecting multiple services in their environments. The use case varies from connecting a handful of services to hundreds of services across various languages in on-prem or cloud environments. Below are details and quotes from some of our early adopters.</p>
         <h6 class="case-studies-title">Check out what people are saying below:</h6>
 

community/index.html

@@ -47,6 +47,11 @@ <h4 class="community-contribute community-title">Contribute on Github</h4>
                     <a href="{{ site.baseurl }}/contribute"><span>More on how to contribute to gRPC Documentation ></span></a>
                 </section>
 
+                <section class="community-section">
+                    <h4 class="community-mailing community-title">Mailing List</h4>
+                    <p>Any questions or suggestions? Just want to be in the loop of what is going on with the project? Join the <a href="https://groups.google.com/forum/#!forum/grpc-io">mailing list</a>
+                </section>
+
                 <section class="community-section">
                     <h4 class="community-irc community-title">Join gRPC Ecosystem</h4>
                     <p>We have an organization for all valuable projects around gRPC in the <a href="https://github.com/grpc-ecosystem">gRPC Ecosystem</a>. The goal is to have all projects around gRPC (showing integrations with other projects or building utilities on top of gRPC) to be showcased here. If you have a new project you would like to add to gRPC Ecosystem, please fill up the <a href="https://docs.google.com/a/google.com/forms/d/119zb79XRovQYafE9XKjz9sstwynCWcMpoJwHgZJvK74/edit">gRPC Ecosystem Project Request</a> form. Please read the <a href="https://github.com/grpc/grpc-contrib/blob/master/CONTRIBUTING.md">contribution guidelines</a> for gRPC Ecosystem before submitting. 
@@ -55,19 +60,13 @@ <h4 class="community-irc community-title">Join gRPC Ecosystem</h4>
                 <section class="community-section">
                     <h4 class="community-irc community-title">Gitter Channel</h4>
                     <p>Join other developers and users on the <a href="https://gitter.im/grpc/grpc">gRPC Gitter channel</a></p>
-
                 </section>
 
                  <section class="community-section">
                     <h4 class="community-reddit community-title">Reddit</h4>
                     <p>Join the <a href="https://www.reddit.com/r/grpc/">subreddit</a></p>
                 </section>
 
-                <section class="community-section">
-                    <h4 class="community-mailing community-title">Mailing List</h4>
-                        <p>Any questions or suggestions? Just want to be in the loop of what is going on with the project? Join the <a href="https://groups.google.com/forum/#!forum/grpc-io">mailing list</a>
-                </section>
-
                 <section class="community-section">
                     <h4 class="community-mailing2 community-title">Meetup Group</h4>
                         <p class="community-text">We hold gRPC meetups every other month. Become a member of our <a href="https://www.meetup.com/gRPC-Meet-Up/">meetup group</a></p>