docs: update .all-contributorsrc [skip ci]

allcontributors[bot] · web-flow · commit 7d96d229098f · 2023-12-10T19:37:57.000Z
diff --git a/.all-contributorsrc b/.all-contributorsrc
@@ -189,6 +189,17 @@
       "contributions": [
         "doc"
       ]
+    },
+    {
+      "login": "SilvestriStefano",
+      "name": "Stefano Silvestri",
+      "avatar_url": "https://avatars.githubusercontent.com/u/18087952?v=4",
+      "profile": "http://silvestristefano.github.io/",
+      "contributions": [
+        "ideas",
+        "code",
+        "doc"
+      ]
     }
   ],
   "contributorsPerLine": 7,
