add dependency to read-file

Author: pablomdo

package.json

@@ -10,8 +10,8 @@
     "type": "git",
     "url": "git+https://github.com/inspekter/inspekter-plugin-javascript.git"
   },
-  "engines" : {
-    "node" : ">=4"
+  "engines": {
+    "node": ">=4"
   },
   "author": "Pablo Oliveira <kryptogeist@gmail.com>",
   "license": "MIT",
@@ -20,7 +20,8 @@
   },
   "homepage": "https://github.com/inspekter/inspekter-plugin-javascript#readme",
   "dependencies": {
-    "escomplex": "^2.0.0-alpha"
+    "escomplex": "^2.0.0-alpha",
+    "read-file": "^0.2.0"
   },
   "devDependencies": {
     "chai": "^4.1.2",