Add `yum install` step


git-svn-id: http://svn.apache.org/repos/asf/cassandra/site@1800000 13f79535-47bb-0310-9956-ffa450edef68
diff --git a/publish/download/index.html b/publish/download/index.html
index 1242d34..296ca3a 100644
--- a/publish/download/index.html
+++ b/publish/download/index.html
@@ -195,6 +195,13 @@
 </div>
 </div>
 
+<ul>
+  <li>Install Cassandra, accepting the gpg key import prompts:</li>
+</ul>
+
+<pre><code>sudo yum install cassandra
+</code></pre>
+
 <p>Start Cassandra (will not start automatically):</p>
 
 <pre><code>service cassandra start
diff --git a/src/download.md b/src/download.md
index ad64566..1621443 100644
--- a/src/download.md
+++ b/src/download.md
@@ -93,6 +93,12 @@
 gpgkey=https://www.apache.org/dist/cassandra/KEYS
 ```
 
+* Install Cassandra, accepting the gpg key import prompts:
+
+```
+sudo yum install cassandra
+```
+
 Start Cassandra (will not start automatically):
 
 ```