Merge pull request #2586 from moreal/update-readme

Write invitations to developer portal

README.md

@@ -2,8 +2,11 @@
 
 [![Planetarium Discord invite](https://img.shields.io/discord/539405872346955788?color=6278DA&label=Planetarium&logo=discord&logoColor=white)](https://discord.gg/JyujU8E4SD)
 [![Planetarium-Dev Discord Invite](https://img.shields.io/discord/928926944937013338?color=6278DA&label=Planetarium-dev&logo=discord&logoColor=white)](https://discord.gg/RYJDyFRYY7)
-[![Discourse posts](https://img.shields.io/discourse/posts?server=https%3A%2F%2Fdevforum.nine-chronicles.com%2F&logo=discourse&label=9c-devforum&color=00D1C2
-)](https://devforum.nine-chronicles.com)
+
+> [!TIP]
+> If you're new to Nine Chronicles, try to visit our **Developer Portal**!
+>
+> https://nine-chronicles.dev/
 
 NineChronicles.Headless is a blockchain node implemented using the blockchain library [Libplanet] and the game's protocol [lib9c].