Adding npm keywords

Author: ehmicky

package.json

@@ -17,7 +17,28 @@
     "test": "gulp test"
   },
   "description": "Properly update an error's stack",
-  "keywords": [],
+  "keywords": [
+    "browser",
+    "code-quality",
+    "error",
+    "error-classes",
+    "error-handler",
+    "error-handling",
+    "error-monitoring",
+    "error-reporting",
+    "errors",
+    "exceptions",
+    "javascript",
+    "library",
+    "message",
+    "messages",
+    "monitoring",
+    "nodejs",
+    "stack",
+    "stacktrace",
+    "stacktraces",
+    "typescript"
+  ],
   "license": "MIT",
   "homepage": "https://www.github.com/ehmicky/set-error-stack",
   "repository": "ehmicky/set-error-stack",