re-addded missed release notes entry in Document-Processing-toc.html

Author: DeepakRajSundar

Document-Processing-toc.html

@@ -7037,6 +7037,7 @@
 					<li><a href="/document-processing/release-notes/v31.1.22">v31.1.22</a></li>
 					<li><a href="/document-processing/release-notes/v31.1.21">v31.1.21</a></li>
 					<li><a href="/document-processing/release-notes/v31.1.20">v31.1.20</a></li>
+					<li><a href="/document-processing/release-notes/v31.1.19">v31.1.19</a></li>
 					<li><a href="/document-processing/release-notes/v31.1.18">v31.1.18</a></li>
 				</ul>
 			</li>