added themes, extension manifest and layout splits

public/manifest.json

@@ -0,0 +1,22 @@
+{
+  "name": "Markdown Home Tab",
+  "short_name": "Markdown New Tab",
+  "version": "0.0.0",
+  "description": "Makdown editor on your new tab",
+  "manifest_version": 2,
+  "permissions": ["storage"],
+  "chrome_url_overrides": {
+    "newtab": "index.html"
+  },
+  "author": "Grogiriy Chervoplyas (muerwre)",
+  "icons": {
+    "16": "static/icon/icon16.png",
+    "48": "static/icon/icon48.png",
+    "128": "static/icon/icon128.png"
+  },
+  "applications": {
+    "gecko": {
+      "id": "gotham48@gmail.com"
+    }
+  }
+}