Prepare for npm publish

.dockerignore

@@ -1,3 +1,2 @@
-screenshots
 .git
 node_modules

.npmignore

@@ -0,0 +1,3 @@
+.git
+node_modules
+METRICS.md

package.json

@@ -1,16 +1,12 @@
 {
   "name": "prometheus-act-exporter",
   "version": "1.0.0",
-  "description": "Exports ACT data usage as prometheus metrics",
+  "description": "Exports ACT Fibernet data usage as prometheus metrics",
   "main": "index.js",
   "scripts": {
     "test": "echo \"Error: no test specified\" && exit 1"
   },
-  "keywords": [
-    "actcorp",
-    "balance",
-    "flexibyte"
-  ],
+  "keywords": ["actcorp", "balance", "flexibyte"],
   "author": "Nemo <npm@captnemo.in>",
   "license": "MIT",
   "dependencies": {