Add Spreadshirt (w/ alias Spreadshop) (#5786)

_data/simple-icons.json

@@ -8439,6 +8439,20 @@
             "hex": "352A71",
             "source": "https://www.spotlight.com/"
         },
+        {
+            "title": "Spreadshirt",
+            "hex": "00B2A5",
+            "source": "https://www.spreadshirt.ie/",
+            "aliases": {
+                "dup": [
+                    {
+                        "title": "Spreadshop",
+                        "hex": "FF9343",
+                        "source": "https://www.spreadshop.com/"
+                    }
+                ]
+            }
+        },
         {
             "title": "Spreaker",
             "hex": "F5C300",

icons/spreadshirt.svg

@@ -0,0 +1 @@
+<svg role="img" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><title>Spreadshirt</title><path d="M12 6.306L7.796 2.102 0 9.898l12 12 12-12-7.796-7.796zm0 12L3.592 9.898l4.204-4.204L12 9.898l4.184-4.184 4.204 4.204"/></svg>