feat: added blob tutorials

Author: PatrickAlphaC

src/data/externalTutorials.json

@@ -1,4 +1,19 @@
 [
+  {
+    "url": "https://medium.com/cyfrin/what-is-eip-4844-proto-dankshading-and-blob-transactions-explained-984dec50dcc8",
+    "title": "What is EIP-4844? Proto-Danksharding and blob transactions explained",
+    "description": "What is the EIP-4844? Learn what proto-danksharding and blobs are, how they work, and how to send your first blob transaction using the new Ethereum improvement proposal",
+    "author": "Patrick Collins",
+    "authorGithub": "https://github.com/PatrickAlphaC",
+    "tags": [
+      "rollups",
+      "blobs"
+    ],
+    "skillLevel": "intermediate",
+    "timeToRead": "660",
+    "lang": "en",
+    "publishDate": "5/29/2024"
+  },
   {
     "url": "https://www.youtube.com/watch?v=LmQTRGqUL9s",
     "title": "What is EIP-4844? | Blobs & Proto-danksharding",