docs: 📝 Change log added

Author: uttamukkoji

CHANGELOG.md

@@ -0,0 +1,4 @@
+# Changelog
+
+## [1.0.0](https://github.com/contentstack/contentstack-management-javascript/tree/v1.0.0) (2021-04-02)
+  - Initial release for Contentstack CMA base JS management SDK

package.json

@@ -13,6 +13,10 @@
     "contentstack javascript",
     "Contentstack javascript"
   ],
+  "repository": {
+    "type": "git",
+    "url": "https://github.com/contentstack/contentstack-utils-javascript.git"
+  },
   "scripts": {
     "test": "jest --config jestconfig.json ",
     "test:badges": "npm run test && jest-coverage-badges --output ./badges",