Search: adding search API docs

docs/rest-api/rest-notebook.md

@@ -424,4 +424,33 @@ limitations under the License.
       <td><pre>{"status":"OK","body":"* * * * * ?"}</pre></td>
     </tr>
   </table>
+
+  <table class="table-configuration">
+    <col width="200">
+    <tr>
+      <th>Full-text search thoug the paragraps in all notebooks</th>
+      <th></th>
+    </tr>
+    <tr>
+      <td>Description</td>
+      <td>```GET``` request will return list of matching paragraphs
+      </td>
+    </tr>
+    <tr>
+      <td>URL</td>
+      <td>```http://[zeppelin-server]:[zeppelin-port]/api/notebook/search?q=[query]```</td>
+    </tr>
+    <tr>
+      <td>Success code</td>
+      <td>200</td>
+    </tr>
+    <tr>
+      <td>Fail code</td>
+      <td> 500 </td>
+    </tr>
+    <tr>
+      <td>Sample JSON response </td>
+      <td><pre>{"status":"OK", body: [{"id":"<noteId>/paragraph/<paragraphId>", "name":"Notebook Name", "snippet":"", "text":""}]}</pre></td>
+    </tr>
+  </table>