Updated readme, v1.5.8

readme.md

@@ -5,10 +5,11 @@
 Simple encrypted web chat. Powered by [socket.io](http://socket.io) and the [web cryptography API](https://developer.mozilla.org/en-US/docs/Web/API/Window/crypto).
 
 ### Running a local copy
-Starting at version **1.5.7**, you can run a local copy of Darkwire via Docker through dockerhub.
+You can run a local copy of Darkwire via Docker through dockerhub. Versions are strictly controlled, (we recommend using the latest tagged version)[https://github.com/seripap/darkwire.io/releases] as older versions may pose some security issues.
 
 ```
-$ docker run -d -p 80:3000 --name dakrwire darkwire/1.5.7 
+# Version numbers can be found in latest releases
+$ docker run -d -p 80:3000 --name dakrwire darkwire/${VERSION_NUMBER}
 ```
 
 Docker is now running on local port 80.
@@ -23,21 +24,18 @@ $ docker run -p 80:3000 darkwire
 Darkwire is now online on local port 80. Default container port is 3000.
 
 ### Installation
-    # Get latest version of NodeJS for ES2015 support
-    npm install -g n
-    n stable
-    npm install
+    # Using node@v6.7
+    $ npm install
     
     # Starting dev environment
-    npm run dev
-
-    # Running tests locally
-    brew install chromedriver
-    npm test
+    $ npm run dev
 
+    # Running tests locally (Mac)
+    $ brew install chromedriver
+    $ npm test
     # Start a local instance of darkwire
-    npm run bundle
-    npm start
+    $ npm run bundle
+    $ npm start
 
     # Changing ports, default is 3000
     port=3000 npm start