Update website

manual/dev/index.html

@@ -2855,15 +2855,17 @@ <h3>
           </section>
           <section id="add">
             <h3>
-              <code>add</code>
-              <a href="#add" class="icon-link" aria-label="Link to this section: `add`"><span class="bi bi-link-45deg" aria-hidden="true"></span></a>
+              <code>add</code>, <code>add(generator)</code>
+              <a href="#add" class="icon-link" aria-label="Link to this section: `add`, `add(generator)`"><span class="bi bi-link-45deg" aria-hidden="true"></span></a>
             </h3>
             <p>The filter <code>add</code> takes as input an array, and produces as
 output the elements of the array added together. This might
 mean summed, concatenated or merged depending on the types
 of the elements of the input array - the rules are the same
 as those for the <code>+</code> operator (described above).</p>
 <p>If the input is an empty array, <code>add</code> returns <code>null</code>.</p>
+<p><code>add(generator)</code> operates on the given generator rather than
+the input.</p>
             <div class="pb-3">
               <button type="button" class="btn btn-sm btn-secondary text-body-secondary bg-transparent link-body-emphasis border-0" data-bs-toggle="collapse" data-bs-target="#example36" aria-expanded="false" aria-controls="example36">
                 <span class="me-1 d-print-none" aria-hidden="true"><span class="bi bi-chevron-right"></span><span class="bi bi-chevron-down"></span></span>Examples
@@ -2923,6 +2925,24 @@ <h3>
                     <td></td>
                   </tr>
                 </table>
+                <table class="table table-borderless table-sm w-auto">
+                  <tr>
+                    <th class="pe-3">Command</th>
+                    <td class="font-monospace">jq 'add(.[].a)'</td>
+                  </tr>
+                  <tr>
+                    <th>Input</th>
+                    <td class="font-monospace">[{&#34;a&#34;:3}, {&#34;a&#34;:5}, {&#34;b&#34;:6}]</td>
+                  </tr>
+                  <tr>
+                    <th>Output</th>
+                    <td class="font-monospace">8</td>
+                  </tr>
+                  <tr class="d-print-none">
+                    <th><a href="https://jqplay.org/jq?q=add%28.%5B%5D.a%29&j=%5B%7B%22a%22%3A3%7D%2C%20%7B%22a%22%3A5%7D%2C%20%7B%22b%22%3A6%7D%5D" class="btn btn-outline-primary btn-sm" target="_blank" rel="noopener">Run<span class="bi bi-box-arrow-up-right ms-2" aria-hidden="true"></span></a></th>
+                    <td></td>
+                  </tr>
+                </table>
               </div>
             </div>
           </section>
@@ -8339,7 +8359,7 @@ <h2>Colors <a href="#colors" class="icon-link" aria-label="Link to this section:
         "halt_error, halt_error(exit_code)": "halt_error",
         "$__loc__": "$__loc__",
         "paths, paths(node_filter)": "paths",
-        "add": "add",
+        "add, add(generator)": "add",
         "any, any(condition), any(generator; condition)": "any",
         "all, all(condition), all(generator; condition)": "all",
         "flatten, flatten(depth)": "flatten",