Add Concurrent Theta Sketch docs
diff --git a/_includes/toc.html b/_includes/toc.html
index f0129c2..b229e9b 100644
--- a/_includes/toc.html
+++ b/_includes/toc.html
@@ -101,6 +101,7 @@
</p>
<div class="collapse" id="collapse_theta">
<li><a href="{{site.docs_dir}}/Theta/ThetaSketchFramework.html">Theta Sketch Framework</a></li>
+ <li><a href="{{site.docs_dir}}/Theta/ConcurrentThetaSketch.html">Concurrent Theta Sketch</a></li>
<li><a href="{{site.docs_dir}}/Theta/ThetaJavaExample.html">Theta Sketch Java Example</a></li>
<li><a href="{{site.docs_dir}}/Theta/ThetaSparkExample.html">Theta Sketch Spark Example</a></li>
<p>
diff --git a/docs/Concurrency.md b/docs/Concurrency.md
index babdec3..22a6c8e 100644
--- a/docs/Concurrency.md
+++ b/docs/Concurrency.md
@@ -4,7 +4,7 @@
## Concurrency
-Only the concurrent version of the Theta Sketch, which can be derived from the UpdateSketchBuilder can be considered thread-safe. None of the other sketches in this library have been designed for concurrent operation and should be considered __not thread safe__.
+Only the [Concurrent Theta Sketch]({{site.docs_dir}}/Theta/ConcurrentThetaSketch.html), which can be derived from the UpdateSketchBuilder can be considered thread-safe. None of the other sketches in this library have been designed for concurrent operation and should be considered __not thread safe__.
Most systems that incorporate sketches generally design a wrapper class that maps the required sketch API to the host system environment API. This is the simplest place to encorporate thread synchronization.
