add linkedin website in search

sherlock/resources/data.json

@@ -1025,6 +1025,15 @@
     "username_claimed": "blue",
     "username_unclaimed": "noonewouldeverusethis7"
   },
+  "Linkedin": {
+    "errorMsg": "This profile is not available",
+    "errorType": "message",
+    "rank": 0,
+    "url":  "https://www.linkedin.com/in/{}",
+    "urlMain": "https://www.linkedin.com/",
+    "username_claimed": "alex",
+    "username_unclaimed": "noonewouldeverusethis7"
+  },
   "LiveJournal": {
     "errorType": "status_code",
     "rank": 421,