add powershell config

pwsh/Microsoft.PowerShell_profile.ps1

@@ -0,0 +1,16 @@
+# Automatically install oh-my-posh
+if (-not (Test-Path "$env:LOCALAPPDATA\Programs\oh-my-posh\bin\oh-my-posh.exe")) {
+  Set-ExecutionPolicy Bypass -Scope Process -Force
+  Invoke-Expression ((New-Object System.Net.WebClient).DownloadString('https://ohmyposh.dev/install.ps1'))
+  $env:Path = [System.Environment]::GetEnvironmentVariable("Path","Machine") + ";" + [System.Environment]::GetEnvironmentVariable("Path","User") # https://stackoverflow.com/a/31845512
+  $env:POSH_INSTALLER = "manual"
+  $env:POSH_THEMES_PATH = "$env:LOCALAPPDATA\Programs\oh-my-posh\themes"
+}
+
+# oh-my-posh initialization
+oh-my-posh init pwsh --config "$env:POSH_THEMES_PATH/agnoster.minimal.omp.json" | Invoke-Expression
+
+# Shortcut to edit the hosts file
+function hosts {
+        Start-Process "notepad.exe" -Args "C:\Windows\system32\drivers\etc\hosts" -Verb runAs
+}