booklet.md: Add JetBrains brochure

mpsijm · mpsijm · commit df90df9ad013 · 2025-10-23T11:36:38.000+02:00
diff --git a/content/booklet.md b/content/booklet.md
@@ -49,6 +49,8 @@ Even BAPC 2025 is organised by members of the study association W.I.S.V. 'Christ
 ![Delft City Center Map](/delft-city-center-map.jpg)
 *Source: [OnTheWorldMap](https://ontheworldmap.com/netherlands/city/delft/delft-city-center-map.html)*
 
+![JetBrains ad](/jetbrains_ad.png)
+
 ## Systems
 During the contest, the computer is your most valuable resource (perhaps apart from coffee).
 A brief explanation of our systems can be found on this page.
diff --git a/static/jetbrains_ad.png b/static/jetbrains_ad.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:b898cccc207e35878221222ab0442229a7ddafb2ff31788f3084ab79db645ee8
+size 721974
