New translations readme.md (Portuguese)

Author: benface

website/src/pages/pt/subgraphs/developing/creating/graph-ts/README.md

@@ -6,7 +6,7 @@
 TypeScript/AssemblyScript library for writing subgraph mappings to be deployed to
 [The Graph](https://github.com/graphprotocol/graph-node).
 
-## Usage
+## Uso
 
 For a detailed guide on how to create a subgraph, please see the
 [Graph CLI docs](https://github.com/graphprotocol/graph-cli).