Indicate that values of @context found in Create Term Definition are processed, but values are discarded to perform error checking.

Fixes #99.

Author: gkellogg

index.html

@@ -1504,7 +1504,10 @@ <h3>Algorithm</h3>
               and <code>true</code> for <var>from property</var>.
               If any error is detected, an
               <a data-link-for="JsonLdErrorCode">invalid scoped context</a> error
-              has been detected and processing is aborted.</li>
+              has been detected and processing is aborted.
+              <p class="note">The result of the <a href="#context-processing-algorithm">Context Processing algorithm</a>
+                is discarded; it is called to detect errors at definition time.
+                If used, the context will be further processed as part of <a>expansion</a> or <a>compaction</a>.</p></li>
             <li>Set the <var>local context</var> of <var>definition</var> to <var>context</var>.</li>
           </ol>
         </li>