DOC: Add title= to generator homelink

Author: kernc

pdoc/templates/html.mako

@@ -434,7 +434,7 @@
 
 <footer id="footer">
     <%include file="credits.mako"/>
-    <p>Generated by <a href="https://pdoc3.github.io/pdoc"><cite>pdoc</cite> ${pdoc.__version__}</a>.</p>
+    <p>Generated by <a href="https://pdoc3.github.io/pdoc" title="pdoc: Python API documentation generator"><cite>pdoc</cite> ${pdoc.__version__}</a>.</p>
 </footer>
 
 % if http_server and module:  ## Auto-reload on file change in dev mode