Update roadmap.html (#22)

Author: VroomRk

_includes/roadmap.html

@@ -9,9 +9,9 @@ <h2>Vision</h2>
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   <div class="col-lg-12 col-md-12">
     <p>
-      Bokeh is an interactive visualization library that targets modern web browsers for presentation.
-      Its goal is to provide elegant, concise construction of versatile graphics, and to extend this capability with high-performance interactivity over very large or streaming datasets.
-      Bokeh can help anyone who would like to quickly and easily create interactive plots, dashboards, and data applications.
+      Bokeh is an interactive visualization library for modern web browsers.
+      It provides elegant, concise construction of versatile graphics and affords high-performance interactivity across large or streaming datasets.
+      Bokeh can help anyone who wants to create interactive plots, dashboards, and data applications quickly and easily.
     </p>
   </div>
 </div>