Add Codesandbox and Postwoman to Utilities

resources/utility.json

@@ -175,6 +175,18 @@
       "desc": "Messed up some of your commits? Make it undone",
       "url": "https://bokub.github.io/git-history-editor/",
       "tags": ["import", "export", "author", "messages"]
+    },
+    {
+      "title": "CodeSandbox.io",
+      "desc": "CodeSandbox is an online code editor with a focus on creating and sharing web application projects",
+      "url": "https://codesandbox.io/",
+      "tags": ["development", "ide","editor", "share", "testing"]
+    },
+    {
+      "title": "Postwoman.io",
+      "desc": "The Postwoman API request builder helps you create your requests faster, saving you precious time on your development.",
+      "url": "https://Postwoman.io/",
+      "tags": ["testing","api"]
     }
   ]
 }