Added new rule

Author: photonstorm

.eslintrc.json

@@ -71,7 +71,8 @@
         "eol-last": [ "error" ],
         "func-call-spacing": [ "error", "never" ],
         "indent": [ "error", 4, { "SwitchCase": 1 } ],
-        "key-spacing": [ "error", { "beforeColon": false, "afterColon": true }],
+        "key-spacing": [ "error", { "beforeColon": false, "afterColon": true } ],
+        "keyword-spacing": [ "error", { "after": true } ],
         "linebreak-style": [ "off" ],
         "lines-around-comment": [ "error", { "beforeBlockComment": true, "afterBlockComment": false, "beforeLineComment": true, "afterLineComment": false, "allowBlockStart": true, "allowBlockEnd": false, "allowObjectStart": true, "allowArrayStart": true }],
         "new-parens": "error",