diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
new file mode 100644
index 0000000..c2e9506
--- /dev/null
+++ b/CONTRIBUTING.md
@@ -0,0 +1,11 @@
+# Contributing to Gabbar
+
+
+:tada: *Thank you for taking the time to contribute!* :tada:
+
+
+## Development
+```bash
+# Code linting
+npm run lint
+```
diff --git a/README.md b/README.md
index 01abc99..64dd182 100644
--- a/README.md
+++ b/README.md
@@ -36,7 +36,7 @@ npm install
 
 ## Prediction
 
-<img width="919" alt="screen shot 2017-06-30 at 4 17 46 pm" src="https://user-images.githubusercontent.com/2899501/27732638-ce026614-5daf-11e7-900b-caff399a9da9.png">
+<img width="928" alt="screen shot 2017-07-10 at 4 59 03 pm" src="https://user-images.githubusercontent.com/2899501/28016300-6ea4cf06-6591-11e7-8572-a17ac98f2aa0.png">
 
 
 ```bash
diff --git a/datasets/analyze-predictions.js b/datasets/analyze-predictions.js
index c27145d..126b88d 100644
--- a/datasets/analyze-predictions.js
+++ b/datasets/analyze-predictions.js
@@ -4,7 +4,7 @@ const argv = require('minimist')(process.argv.slice(2));
 const fs = require('fs');
 const path = require('path');
 
-const OSMCHA_URL = 'https://osmcha.mapbox.com/'
+const OSMCHA_URL = 'https://osmcha.mapbox.com/';
 
 if (!argv.predictionsDir) {
     console.log('');
@@ -56,7 +56,7 @@ while (true) {
     // If changeset is already seen, skip.
     if (goodChangesets.has(good.changeset_id)) continue;
 
-    console.log(OSMCHA_URL + good.changeset_id + '/' + '\t' + getFeatureHash(good) + '.json');
+    console.log(OSMCHA_URL + good.changeset_id + '/\t' + getFeatureHash(good) + '.json');
     goodChangesets.add(good.changeset_id);
 }
 
@@ -73,6 +73,6 @@ while (true) {
     // If changeset is already seen, skip.
     if (harmfulChangesets.has(harmful.changeset_id)) continue;
 
-    console.log(OSMCHA_URL + harmful.changeset_id + '/' + '\t' + getFeatureHash(harmful) + '.json');
+    console.log(OSMCHA_URL + harmful.changeset_id + '/\t' + getFeatureHash(harmful) + '.json');
     harmfulChangesets.add(harmful.changeset_id);
 }
diff --git a/datasets/extract-feature.js b/datasets/extract-feature.js
index 9841049..de95650 100644
--- a/datasets/extract-feature.js
+++ b/datasets/extract-feature.js
@@ -31,7 +31,7 @@ for (let version of versions) {
     let newVersion = version[0];
     let oldVersion = version[1];
 
-    if ((newVersion.properties.type == argv.featureType) && (newVersion.properties.id == argv.featureID)) {
+    if ((newVersion.properties.type === argv.featureType) && (newVersion.properties.id === argv.featureID)) {
         console.log(JSON.stringify(turf.featureCollection(version), null, 4));
         process.exit(0);
     }