docs: 📝 Update wiki powershell-snippet (#1542)

Author: FallenDeity

.github/wiki/Getting-Started.md

@@ -126,25 +126,21 @@ An adaptation of the above snippet suited for `Powershell`. Put this script in t
 
 ```pwsh
 # git repository greeter
+
+# Set the console output encoding to UTF-8, so that special characters are displayed correctly when piping to Write-Host
+[Console]::OutputEncoding = [System.Text.Encoding]::UTF8
 $global:lastRepository = $null
 
 function Check-DirectoryForNewRepository {
     $currentRepository = git rev-parse --show-toplevel 2>$null
     if ($currentRepository -and ($currentRepository -ne $global:lastRepository)) {
-        onefetch
+        onefetch | Write-Host
     }
     $global:lastRepository = $currentRepository
 }
 
 function Set-Location {
-    param (
-        [string]$path
-    )
-
-    # Use the default Set-Location to change the directory
-    Microsoft.PowerShell.Management\Set-Location -Path $path
-
-    # Check if we are in a new Git repository
+    Microsoft.PowerShell.Management\Set-Location @args  
     Check-DirectoryForNewRepository
 }