Update composer keywords

Author: antonkomarev

composer.json

@@ -1,18 +1,21 @@
 {
     "name": "cybercog/contracts-weblog",
-    "description": "Сontracts for the framework interoperable Weblog development.",
+    "description": "Сontracts for the framework interoperable Blog development.",
     "type": "library",
     "license": "MIT",
     "keywords": [
         "cybercog",
         "cog",
         "contract",
+        "framework-agnostic",
+        "interoperable",
         "blog",
         "weblog",
         "journal",
         "post",
         "article",
         "story",
+        "media",
         "publication",
         "blogging",
         "blogger",