feat: init 4th CHAINS workshop (#44)

* docs: add page for 4th CHAINS workshop

* link event on main page

* fix typo

Author: algomaster99

README.md

@@ -82,6 +82,7 @@ Chains alumni: [Arvid Siberov](https://siberov.se), [Linus Östlund](https://www
 
 
 ## Events & Talks
+- April 25 2025: [4th KTH Workshop on the Software Supply Chain](software-supply-chain-workshop-4.md)
 - May 23 2024: [Chains talk at Dataföreningen](https://dfs.se/pa_gang/prata-eu-cyber-resilience-act-med-oss-16-2/)
 - April 26 2024: [3rd KTH Workshop on the Software Supply Chain](software-supply-chain-workshop-3.md)
 - Nov 26 2023: [The Chains SBOM orchestra at SCORED](https://github.com/chains-project/sbom-orchestra/), Chains Team, [SCORED 2023](https://scored.dev), Copenhagen

software-supply-chain-workshop-4.md

@@ -0,0 +1,36 @@
+<meta name="og:description" content="KTH hosts the 4th CHAINS workshop where we have conversations about super cool research on software supply chain security and reliability. Check out our link to know more!">
+<meta property="og:url" content="https://chains.proj.kth.se/software-supply-chain-workshop-4">
+<meta property="og:image" content="https://avatars.githubusercontent.com/u/104410944?s=200&v=4">
+
+# 4th KTH Workshop on the Software Supply Chain
+
+Welcome to the 4th KTH Workshop on the Software Supply Chain.
+This workshop is organized in the context of the [CHAINS](https://chains.proj.kth.se/) research project.
+
+
+* Location: TBD
+* Date: April 25, 2025
+* Time: 9h-17h
+
+## Program
+
+TBD
+
+## Keynotes
+
+### TBD
+
+### TBD
+
+## Sponsors
+
+<div style="display: flex; justify-content: center;">
+<img src="workshop_4_assets/ssf_logo.svg" alt="SSF" style="width: 200; margin: auto;"/>
+  <img src="workshop_4_assets/df_logo.png" alt="Digital Futures" style="max-width: 30%; margin: auto;"/> 
+</div>
+
+## Previous editions
+
+- [3rd KTH Workshop on the Software Supply Chain](/software-supply-chain-workshop-3.md) 
+- [2nd KTH Workshop on the Software Supply Chain](/software-supply-chain-workshop-2.md)
+- [1st KTH Workshop on the Software Supply Chain](/software-suppply-chain-workshop-1.md)