Merge pull request 0xPolygon#608 from joalavedra/patch-2

Update third-party-tutorials.md

Author: hsutaiyu

docs/tools/dApp-development/third-party-tutorials.md

@@ -16,6 +16,7 @@ Explore the categories below to discover third-party resources and tutorials to
 
 - [ChainIDE](https://chainide.gitbook.io/chainide-english-1/ethereum-ide-1/6.-polygon-ide)
 - [EthCreator](https://www.ethcreator.com/)
+- [Openfort](https://openfort.xyz/docs)
 - [Thirdweb](https://portal.thirdweb.com/contracts)
 
 ## Chain data and analytics services
@@ -29,4 +30,4 @@ Explore the categories below to discover third-party resources and tutorials to
 - Venly
     - [NFT API](https://docs.venly.io/docs/nft-api-getting-started)
     - [Zapier integration](https://docs.venly.io/docs/zapier-integration)
-- [Crossmint](https://blog.crossmint.com/how-to-create-and-mint-nfts-on-polygon/)
+- [Crossmint](https://blog.crossmint.com/how-to-create-and-mint-nfts-on-polygon/)