katex fixes

Author: vpj

docs/sitemap.xml

@@ -344,7 +344,7 @@
 
     <url>
       <loc>https://nn.labml.ai/diffusion/ddpm/index.html</loc>
-      <lastmod>2021-10-21T16:30:00+00:00</lastmod>
+      <lastmod>2022-03-21T16:30:00+00:00</lastmod>
       <priority>1.00</priority>
     </url>
 
@@ -729,7 +729,7 @@
 
     <url>
       <loc>https://nn.labml.ai/transformers/retro/model.html</loc>
-      <lastmod>2022-03-12T16:30:00+00:00</lastmod>
+      <lastmod>2022-03-21T16:30:00+00:00</lastmod>
       <priority>1.00</priority>
     </url>