docs: update html output of the API documentation

docs/api.html

@@ -247,7 +247,7 @@ <h2>(weblorg-route (&rest options))</h2>
 files from the input list.  The variables available for the
 template come from the return of this function.</li>
 
-<li>‘:input-source’: List of collections of data to be writtend
+<li>‘:input-source’: List of collections of data to be written
 directly to templates.  In other words, this parameter
 replaces the pipeline ‘pattern‘ &gt; ‘exclude‘ &gt; ‘filter‘ &gt;
 ‘aggregate‘ and will feed data directly into the function that