Clarify Cluster and ClusterHelper classes dotnet

content/sdk/dotnet/managing-connections.dita

@@ -8,21 +8,26 @@
       practices as well as information on the connection string,  SSL and other advanced connection options.</shortdesc>
   <conbody>
     <section>
-      <title>Connecting to a Bucket</title>
-      <p>Connecting to a bucket is a two-step process: first, a <codeph>CouchbaseCluster</codeph>
-        object needs to be created or the <apiname>ClusterHelper</apiname> object needs to be initialized, followed by
-        one or more calls to <apiname>OpenBucket()</apiname> or <apiname>GetBucket(..)</apiname>:</p>
+      <title>Connecting to a Cluster and Opening a Bucket</title>
+      <p>Connecting to a bucket is a two-step process: first, a <b><codeph>Cluster</codeph></b>
+        object needs to be created or the <b><apiname>ClusterHelper</apiname></b> object needs to be
+        initialized, followed by one or more calls to <apiname>OpenBucket()</apiname> or
+          <apiname>GetBucket(..)</apiname>:</p>
       <codeblock outputclass="language-csharp"><![CDATA[var cluster = Cluster();
 var bucket = cluster.OpenBucket("default");
 
 //or alternately
 ClusterHelper.Initialize();
 var bucket = ClusterHelper.GetBucket("default);]]></codeblock>
-      <p>If no further arguments are applied, this code connects to <codeph>localhost</codeph> and
-        opens the <i>default</i> bucket. While this is suitable for development, you most probably
-        want to connect to a remote cluster and also a different bucket (with a password), to do
-        this you create a <apiname>ClientConfiguration</apiname> object can be constructed with a custom
-        configuration:</p>
+      <p><note>The <apiname>ClusterHelper</apiname> is a singleton/multiton that makes it easier to manage resources
+          and instances in server runtime environments such as ASP.NET and Owin/Katana. A
+        <apiname>ClusterHelper</apiname> will make a singleton instance of a <apiname>Cluster</apiname> object and configuration and
+        store references to opened <apiname>IBucket</apiname> objects that can be reused throughout the lifespan of
+          an application.</note>If no further arguments are applied, this code connects to
+          <codeph>localhost</codeph> and opens the <i>default</i> bucket. While this is suitable for
+        development, you most probably want to connect to a remote cluster and also a different
+        bucket (with a password), to do this you create a <apiname>ClientConfiguration</apiname>
+        object can be constructed with a custom configuration:</p>
       <codeblock outputclass="language-csharp"><![CDATA[//define a configuration object
 var config = new ClientConfiguration {
    Servers = new List<Uri> {