pwsh using emacs mode

pwsh/HowToUse.md

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+# Emacs mode
+Set-PSReadLineOption -EditMode Emacs
+
+# Oh-My-Posh
+Copy *.omp.json to `$env:POSH_THEMES_PATH`
+Edit $PROFILE and add `oh-my-posh init pwsh --config "$env:POSH_THEMES_PATH/powerlevel10k_rainbow_eip.omp.json" | Invoke-Expression` at the top.
+
+# Command Not Found
+Import-Module -Name Microsoft.WinGet.CommandNotFound
+