Add tags fields & add findByTags getter

resources/server.json

@@ -5,37 +5,44 @@
     {
       "title": "Netlify",
       "desc": "Free static hosting with privacy in mind!",
-      "url": "https://netlify.com"
+      "url": "https://netlify.com",
+      "tags": []
     },
     {
       "title": "Github Pages",
       "desc": "Free static hosting by Github.",
-      "url": "https://pages.github.com"
+      "url": "https://pages.github.com",
+      "tags": []
     },
     {
       "title": "Heroku",
       "desc": "Heroku is a platform as a service (PaaS) that enables developers to build, run, and operate applications entirely in the cloud.",
-      "url": "https://www.heroku.com/"
+      "url": "https://www.heroku.com/",
+      "tags": []
     },
     {
       "title": "Ploi",
       "desc": "Stop the Hassle. Start deploi'ing. Use Ploi.io for easy site deployments. We take all the difficult work out of your hands, so you can focus on doing what you love: developing your application.",
-      "url": "https://ploi.io"
+      "url": "https://ploi.io",
+      "tags": []
     },
     {
       "title": "Now",
       "desc": "Global Serverless Deployments. Now makes serverless application deployment easy. Don't spend time configuring the cloud. Just push your code.",
-      "url": "https://zeit.co/now"
+      "url": "https://zeit.co/now",
+      "tags": []
     },
     {
       "title": "Namecheap",
       "desc": "Domains for your projects",
-      "url": "https://namecheap.com"
+      "url": "https://namecheap.com",
+      "tags": []
     },
     {
       "title": "Servers for hackers",
       "desc": "Tutorials on how to handle your servers.",
-      "url": "https://serversforhackers.com/"
+      "url": "https://serversforhackers.com/",
+      "tags": []
     }
   ]
 }