Added shell-test screenshot

README.md

@@ -9,7 +9,7 @@ This is not an intention to replace nodejs modules but a way to swap certain are
 Usage:
 -------
 Bundle:   
-A bundle should export bundleStart, or bundleActivator object   
+A bundle should export bundleStart, or bundleActivator object with start and stop methods   
 
 This specific bundle it will receive messages from core-shell bundle, execute a shell command and print output   
 Placing the bundle in {app path}/bundles/shell-test/index.js
@@ -18,13 +18,11 @@ var log = require('hlogger').createLogger('shell-test');
 var child = require('child_process');
 
 function bundleStart(context) {
-
-	log.info("Command provider installed");
-
+	log.info('Command provider installed');
 	// Create a bash and transport commands
 	context.events
 		.channel('core-shell')
-		.after('cmd',(req,res,e) => {
+		.after('cmd',(req,res,e) => {   // Subscribe for core-shell cmd messages, after means it will let execute any preexisting shell and if not found it will execute this
 			if(e.count != 0) return;
 			e.wait();	
 			var shcmd = req.cmd + " " + req.args.join(" ");
@@ -46,6 +44,9 @@ var BundleManager = require('node-hci');   // or path to node-hci since is not p
 var manager = new BundleManager({runPath: __dirname + "/bundles"});
 manager.loadDefaultBundles();
 ```
+Result of this bundle:   
+![shell-test example](doc/assets/shell-test.png)
+