feat: Add LinkedIn profiles to contributors

Author: neural-loop

content/contributors/luuk-van-keeken/index.md

@@ -2,7 +2,10 @@
 title: "Luuk van Keeken"
 description: "Researcher/PhD student at KTH Royal Institute of Technology, specializing in Neuromorphic Intermediate Representation (NIR) and its PyTorch applications."
 image: "luuk-van-keeken.jpeg" # To be replaced with "luuk-van-keeken.jpg" or similar
-social: []
+social:
+  - icon: "fa-brands fa-linkedin"
+    link: "https://www.linkedin.com/in/luuk-van-keeken/"
+    title: "linkedin"
 draft: false
 ---
 Luuk van Keeken is a researcher/PhD student at KTH Royal Institute of Technology, focusing on neuromorphic computing, specifically related to the Neuromorphic Intermediate Representation (NIR) and its applications with frameworks like PyTorch.

content/contributors/petrut-bogdan/index.md

@@ -2,7 +2,10 @@
 title: "Petruț Bogdan"
 image: "petrut-bogdan.jpeg" # To be replaced with "petrut-bogdan.jpg" or similar
 description: "Software developer at Innatera, active in the neuromorphic community. Contributes to Faery, explores hardware-software co-design (Innatera, NIR)."
-social: []
+social:
+  - icon: "fa-brands fa-linkedin"
+    link: "https://www.linkedin.com/in/petrutbogdan"
+    title: "linkedin"
 draft: false
 ---
 Petruț Bogdan is a software developer at Innatera, active in the neuromorphic community. He contributes to tools like Faery and explores hardware-software co-design with platforms like Innatera and standards like NIR. He has a background in SpiNNaker, PyNN, and Nengo, and works on bringing neuromorphic hardware to market.