Update src/main/java/com/esri/samples/geometry/convex_hull_list/README.md
Removed intro from 'How it Works' section following review.
<h1>Convex Hull List</h1>
-<p>Generate convex hull polygon(s) from multiple input geometries. As a visual analogy, consider a set of points as nails in a board. The convex hull of the points would be like a rubber band stretched around the outermost nails.</p>
+<p>Generate convex hull polygon(s) from multiple input geometries.</p>
+
+<p>The convex hull generates a minimum bounding geometry of input graphics. As a visual analogy, consider a set of points as nails in a board. The convex hull of the points would be like a rubber band stretched around the outermost nails.</p>
<p><img src="ConvexHullList.png" /></p>
<h2>How it works</h2>
-<p>The static method, <code>GeometryEngine.ConvexHull</code>, is called by passing in a list of polygon geometries and a boolean to union the result if desired. The two input polygons geometries are hard-coded as part of the sample initialization. </p>
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<ol>
<li>Create an <code>ArcGISMap</code> and display it in a <code>MapView</code>.</li>
