Merge pull request #34 from saeiddrv/draft

ADD L23

Author: Saeid Darvish

_static/123-python-exception-hierarchy.png

@@ -124,6 +124,11 @@
   <lastmod>2021-03-19T17:10:25+00:00</lastmod>
   <priority>0.80</priority>
 </url>
+<url>
+  <loc>https://python.coderz.ir/lessons/l23.html</loc>
+  <lastmod>2021-03-29T17:10:25+00:00</lastmod>
+  <priority>0.80</priority>
+</url>
 <url>
   <loc>https://python.coderz.ir/log.html</loc>
   <lastmod>2021-03-17T17:10:19+00:00</lastmod>

_static/sitemap-index.xml

@@ -48,6 +48,7 @@
    lessons/l20
    lessons/l21
    lessons/l22
+   lessons/l23
    log
    donate-report
    python-interactive