Merge branch 'master' of https://github.com/AleoHQ/welcome into frank…

…-reactleo-tutorial-upgrades

documentation/sdk/typescript/00_sdk_overview.md

@@ -668,7 +668,7 @@ A full example of this implementation can be found [here](https://github.com/Ale
 The official token of operation of the Aleo Network are Aleo credits. Aleo credits are used to pay all fees for program
 execution on the Aleo network.
 
-Aleo credits are defined in the [credits.aleo](https://www.aleo.network/programs/credits.aleo) program. This program is
+Aleo credits are defined in the [credits.aleo](https://explorer.aleo.org/program/credits.aleo) program. This program is
 deployed to the Aleo Network and defines data structures representing Aleo credits and the functions used to manage them.
 
 There are two ways to hold Aleo credits.