Fixed NIU logo path and .md (#2352)

* NIU Logo

* Hayden-Shaddix.jpg added

* Create Hayden-Shaddix.md

* style: pre-commit fixes

* Delete assets/images/codas-hep/2024/Hayden-Shaddix.jpg

* Smaller file Hayden-Shaddix.jpg

* Delete assets/logos/image.png

Copy of NIU logo deleted

* Update Hayden-Shaddix.md

---------

Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>

_codas-hep-students/2024/Hayden-Shaddix.md

@@ -6,11 +6,11 @@ name: Hayden Shaddix
 photo: "/assets/images/codas-hep/2024/Hayden-Shaddix.jpg"
 github-username: hshaddix
 orcid: 0009-0003-1194-7945
-title:
+title: Graduate Student
 website:
 logos:
     - /assets/images/codas-hep/logos/ATLAS-logo.png
-    - /assets/images/codas-hep/logos/NIU.png
+    - /assets/logos/NIU.png
 ---
 
 ## My research: