fix and mention docker-compose demo in the README

README.md

@@ -54,7 +54,7 @@ docker run -d --restart always --name my-exporter -p 9439:9439 -v /path/to/my/co
 >docker run --name my-exporter -p 9439:9439 -v /path/to/my/conf:/app/.env --link my-wallet lepetitbloc/bitcoind-exporter
 >```
 
-## Example
+## Example metrics
 When visiting the metrics URL http://localhost:9439/metrics the following **metrics** are produced:
 ```
 # HELP best_block_index The block height or index
@@ -105,6 +105,12 @@ address_balance_total{address="1FxZE15d8bt381EuDckdDdp7vw8FUiLzu6"} 41.00683469
 address_balance_total{address="1QAm6J6jLmcm7ce87ujrSdmjPNX9fgRUYZ"} 1.72770032
 ```
 
+## Demo
+You can test this exporter with `docker-compose`:
+```
+docker-compose up
+```
+
 ## Resources
 * https://prometheus.io/
 * https://en.bitcoin.it/wiki/API_reference_(JSON-RPC)

docker-compose.yml

@@ -13,6 +13,6 @@ services:
   exporter:
     build: .
     ports:
-      - "3000:3000"
+      - "9439:9439"
     links:
       - bitcoind

package.json

@@ -1,14 +1,15 @@
 {
   "name": "bitcoind-exporter",
-  "version": "2.3.3",
+  "version": "2.3.4",
   "description": "Bitcoind metrics prometheus exporter",
   "main": "index.js",
   "scripts": {
     "test": "dgoss run lepetitbloc/bitcoind-exporter",
     "start": "node -r dotenv/config index.js",
     "build": "docker build -t lepetitbloc/bitcoind-exporter .",
     "push": "docker push lepetitbloc/bitcoind-exporter",
-    "publish": "npm run build && npm run test && npm run push"
+    "publish": "npm run build && npm run test && npm run push",
+    "demo": "docker-compose up"
   },
   "repository": {
     "type": "git",