update index

Author: miku

content/_index.md

@@ -61,6 +61,7 @@ interested, [let's talk](mailto:[email protected]).
 {{< h2 >}}Meetup log{{< /h2 >}}
 
 We try to sum up every meetup in a short blog post:
+[#52](/posts/meetup-52-wrapup/),
 [#51](/posts/meetup-51-wrapup/),
 [#50](/posts/meetup-50-wrapup/),
 [#49](/posts/meetup-49-wrapup/),