New translations arweave.mdx (Portuguese)

Author: benface

website/src/pages/pt/subgraphs/cookbook/arweave.mdx

@@ -168,7 +168,7 @@ Here is an example Subgraph for reference:
 
 - [Example Subgraph for Arweave](https://github.com/graphprotocol/graph-tooling/tree/main/examples/arweave-blocks-transactions)
 
-## FAQ
+## Perguntas Frequentes
 
 ### Can a Subgraph index Arweave and other chains?