New translations index.md (Spanish)

src/pages/es/index.md

@@ -5,14 +5,14 @@ description: Aprende sobre el minado de Stacks, el token STX y el lenguaje de pr
 
 -> Content related to developer tools and app development has recently moved to [docs.hiro.so](https://docs.hiro.so/). For more information on the content move, see [this post](https://forum.stacks.org/t/the-evolution-of-the-stacks-documentation-and-a-new-hiro-docs-site/12343) on the Stacks forum.
 
-## Understand Stacks
+## Comprende Stacks
 
 [@page-reference | grid] | /understand-stacks/overview, /understand-stacks/proof-of-transfer, /understand-stacks/testnet
 
-## Write smart contracts
+## Escribe contratos inteligentes
 
 [@page-reference | grid] | /write-smart-contracts/overview, /write-smart-contracts/tokens
 
-## Start mining
+## Comienza a minar
 
 [@page-reference | grid] | /start-mining/mainnet, /start-mining/testnet