fix: typo in install description (#504)

Author: Harrison Heck

lib/interface/cli/commands/root/install.cmd.js

@@ -4,7 +4,7 @@ const Command = require('../../Command');
 const install = new Command({
     root: true,
     command: 'install',
-    description: 'Instal a resource',
+    description: 'Install a resource',
     usage: 'Install operation will install codefresh components on kubernetes cluster',
     webDocs: {
         description: 'Install a resource',