Change headers to subheaders

Author: Thatsmusic99

_collections/_news/2025-06-24-year-in-review-2025.md

@@ -14,7 +14,7 @@ That occasion also marks the time to rewind and reflect on the experiences we've
 this is no different for CSS. [Since I've already refreshed everyone on what we've done during semester 1](2024-12-14-2024-25s-semester-1-overview.md), 
 let's go through what we've done throughout semester 2.
 
-# What's been going on
+## What's been going on
 
 We held a lot of quirky collaborations with other societies this semester, with societies both well-established and newly
 created. For example: our regular SloLAN game night with GDS, UGG, VR and eSports; a very last-minute entry into the EPS
@@ -51,7 +51,7 @@ together in the sun.
 There is one more event I've not included here, but that's because it deserves its own section of recognition - and this
 goes to none other than the legendary birmingHack.
 
-# birmingHack 1.0 - An Explosive Debut!
+## birmingHack 1.0 - An Explosive Debut!
 
 At our January EGM, we announced a long-awaited hackathon based in UoB called birmingHack, an idea that had been bounced
 around since 2023, and I wanted to make a reality this year. We brought the CS community of UoB together on the 22nd and 
@@ -97,7 +97,7 @@ early next year, around the time of October/November.
 Thank you to each and every committee member of CSS who helped make this event possible - and thank you as well to Adam,
 an external volunteer from hackSheffield who eagerly volunteered to help ensure the event went smoothly!
 
-# Outside of Events - Discord and Minecraft
+## Outside of Events - Discord and Minecraft
 
 As we kick off the summer holidays, we've also been working on things for you to do with the rest of the CSS community
 if you need time to kill.
@@ -138,7 +138,7 @@ to access the Minecraft-Discord bridge chat. We look forward to seeing you there
 
 ![A screenshot of the CS building on the CSS Minecraft server.](/assets/images/2025-end-of-year-newsletter/cs-building-minecraft.png)
 
-# Memberships
+## Memberships
 
 And of course, last but not least - how did we do for memberships this year? It's been included in previous end of year
 newsletters, so you bet I'm including it in this as well.
@@ -171,7 +171,7 @@ they may feel nervous about starting university. The Guild offered me to do an i
 while ago, which you can find [here](https://www.instagram.com/p/DKSM6n2ACJy/), where I go into a bit more detail about how renewing a membership may not 
 just benefit you, but also those around you. 
 
-# Going Forward
+## Going Forward
 
 As I finish off this newsletter and thus our reflection of CSS' second semester, I'd like the opportunity to look to the
 future of CSS.