fix link to the testnet page

Author: szymcio32

docs/devdocs/Setting Up Your Environment/Remix.md

@@ -9,7 +9,7 @@ To get up and running with Remix, you should follow a few easy steps:
 
 ## 1. Add Fhenix to Metamask
 
-Follow the instructions in the [Fhenix Helium Testnet](../Fhenix%20Helium%20Testnet/Connecting-To.md) to add Fhenix to Metamask.
+Follow the instructions in the [Fhenix Helium Testnet](../Fhenix%20Testnet/Connecting-To.md) to add Fhenix to Metamask.
 
 ## 2. Import FHE.sol