Add documentary release blog post

Author: dpiparo

blog/_posts/2026-06-03-cpp-documentary-release.md

@@ -0,0 +1,18 @@
+---
+title: "Invitation: C++ Documentary YouTube Release 🍿"
+layout: archive
+author: Danilo Piparo
+---
+
+Tomorrow, June 4th, 21:00 CET, the [Cult.repo](https://www.cultrepo.com) documentary about C++, featuring its creator, several world-class C++ experts, HEP, and also ROOT will be released.
+
+We'll have a live premiere on YouTube, so people can watch the documentary together while chatting in the live chat
+
+See you [on YouTube](https://youtu.be/lI7tMxzSJ7w)!
+
+<center>
+    <img
+    src="{{'/assets/images/cpp_documentary_poster.png' | relative_url}}"
+    alt="Poster of the documentary"
+    style="width: 60%"/>
+</center>