Fix typo ("reecovery")

[vivid-pixel]

I am just removing a single letter 'e' from the word 'recovery' (misspelled as 'reecovery').

[learn-build-service-prod]

Learn Build status updates of commit 4609d6b:

✅ Validation status: passed

File	Status	Preview URL	Details
windows/security/operating-system-security/data-protection/bitlocker/recovery-process.md	✅Succeeded

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[aczechowski]

Thanks for catching that, and thank you for your first contribution to Windows docs! 🎉