~ tweak pre-image intro

[#10] 3 ShEx Essentials

index.html

@@ -337,7 +337,7 @@ <h2>Basic Terminology</h2>
       <section id="shex-essentials">
         <h2>ShEx Essentials</h2>
           <p>
-            This document uses a running example illustrated by the following graph in which an Issue which is submitted by some person and potentially assigned to the same person or someone else.
+            This document uses a running example illustrated by the following graph in which an Issue is submitted by some person and may be reproduced by the same person or someone else.
             These issues can have a status of <code>unassigned</code> or <code>assigned</code>.
           </p>
 <svg