Add JSS support

src/technologies/j.json

@@ -99,6 +99,17 @@
     },
     "website": "http://www.whorl.co.uk"
   },
+  "JSS":{
+    "cats": [
+      12,
+      47
+    ],
+    "description": "JSS is an authoring tool for CSS which allows you to use JavaScript to describe styles in a declarative, conflict-free and reusable way.",
+    "dom": "style[data-jss]",
+    "icon": "JSS.png",
+    "oss": true,
+    "website": "https://cssinjs.org/"
+  },
   "JTL Shop": {
     "cats": [
       6