Add Mario Massimo (#18)

* Added Mario Massimo image

* Added mario-massimo.md

* Fixed mario-massimo.md

* Fixing again mario-massimo.md

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Co-authored-by: MassimoMario <[email protected]>

Author: Grufoony

_members/mario-massimo.md

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+---
+name: Mario Massimo
+image: images/mario_massimo.jpeg
+role: phd
+order: 11
+category: current
+affiliation: University of Bologna 
+links:
+  home-page: https://www.unibo.it/sitoweb/mario.massimo2/en
+  github: TheMariuolo
+  email: [email protected]
+---
+
+<p style="font-family: 'Georgia', serif; font-size: 18px;">
+PhD student in Applied Physics developing AI tools for urban applications.
+</p>