Update aggregations.md

Author: mbaudis

docs/aggregations.md

@@ -9,8 +9,6 @@
 
 ## Overview and Use Cases
 
-    [![plotly logo](img/plotly-logo.png){ style="float: right; margin: -40px 0px 10px 30px; width: 150px" }](https://plotly.com/javascript/)
-
 While the `Beacon` API provides different ways to discover and potentially retrieve
 data in biomedical genomics resources, with version 2.n responses were limited to
 global content (boolean or overall count of matched data and static collection information)
@@ -112,7 +110,9 @@ Please note:
 * there are now **2 concepts** in the `concepts` list and the `conceptValues` in the distribution are observed combinations of values for both concepts, in the **same order**
 * the `count` indicates the number of times this combination was observed (e.g. 8421 cases of "male" & "Prostate Adenocarcinoma" but 0 cases for "female" & "Prostate Adenocarcinoma")
 
-The stacked bar chart was generated in Plotly.js from the Beacon 2D aggregation in the example below. The `hovertext` shows the breakdown of counts per category, with the "label" of the 2nd concept shown in the legend and hover text - all derived from the response JSON.
+[![plotly logo](img/plotly-logo.png){ style="float: left; margin: 5px 20px 5px 0px; width: 100px" }](https://plotly.com/javascript/)
+
+The stacked bar chart was generated in Plotly.js from the Beacon 2D aggregation in the example below, directly derived from the response JSON on the Progenetix site and reflecting the resource's content.
 
 ```json
 {