✏️ Rename the project

For #6

manifest.json

@@ -1,5 +1,5 @@
 {
-  "name": "Shikiryu Read Later",
+  "name": "Read Later by Email",
   "version": "0.0.3",
   "manifest_version": 2,
   "description": "__MSG_extensionDescription__",
@@ -29,7 +29,7 @@
       "32": "icons/favicon-32x32.png",
       "96": "icons/favicon-96x96.png"
     },
-    "default_title": "Shikiryu Bookmarklet",
+    "default_title": "Read Later by Email",
     "default_popup": "popup.html"
   },
   "applications": {