Add description of technology audience + tutorial deliverable

Closes #6.

cg-charter.html

@@ -41,7 +41,7 @@ <h1>
       </li>
       <li>Start Date: TODO
       </li>
-      <li>Last Modifed: TODO
+      <li>Last Modified: TODO
       </li>
     </ul>
     <h2 id="goals">
@@ -88,6 +88,45 @@ <h2 id="scope-of-work">
         Microsoft's DirectX 12, Apple's Metal, and Khronos's Vulkan.
     </p>
 
+    <h3 id="target-audience">Target Audiences</h3>
+
+    <p>
+        The <a href="#deliverables">deliverables</a> of this Community Group are
+        primarily addressed, either directly or indirectly, to the following audiences:
+    </p>
+    <ul>
+        <li>
+            Developers of 3D and game engines/tools that are producing Web
+            content via transpilation. For example, <a
+            href="https://unity3d.com/">Unity</a> and the <a
+            href="https://www.unrealengine.com">Unreal Engine</a> use <a
+            href="https://en.wikipedia.org/wiki/Emscripten">emscripten</a> to
+            compile content for the Web.
+        </li>
+
+        <li>
+            JavaScript framework developers who are building GPU libraries,
+            intended to be used in Web content, but providing a higher-level
+            API and hiding much of the low-level graphics and compute details
+            from their users. For example, <a
+            href="https://threejs.org">three.js</a>.
+        </li>
+
+        <li>
+            Web developers who are competent in GPU technologies, and will want to
+            use the GPU for the Web API directly to create content, rather than
+            a higher-level framework.
+        </li>
+    </ul>
+
+    <p>
+        The typical Web, or even non-Web, developers are a secondary audience, since
+        they often prefer using a higher-level framework rather than the low-level
+        technology. Such developers are an important part of the community, and some
+        of the <a href="#deliverables">Community Group's non-normative deliverables</a>
+        are addressed to them.
+    </p>
+
     <h3 id="out-of-scope">Out of Scope</h3>
 
     <p>
@@ -142,6 +181,14 @@ <h3 id="non-normative-reports">
       this charter but that are not Specifications, for instance use cases,
       requirements, or white papers.
     </p>
+    <h3 id="tutorials">
+      Tutorials
+    </h3>
+    <p>
+        The group may produce tutorial or explanatory content designed
+        to help people learn the technical material. For example, an interactive
+        tutorial could introduce the graphics pipeline or shader programming.
+    </p>
     <h3 id="test-suites">
       Test Suites and Other Software
     </h3>
@@ -153,9 +200,6 @@ <h3 id="test-suites">
       see the GitHub LICENSE file for test suite contribution licensing
       information.
     </p>
-    <h2 id="liaisons">
-      Dependencies or Liaisons
-    </h2>
     <h2 id="process">
       Community and Business Group Process
     </h2>