Documentation bug: -HostFile parameter in README should be -HostList

[DimitriNGAPGUE]

The README.md and the inline comment documentation in PowerHuntShares.psm1
both reference -HostFile, but the actual parameter name implemented
in the code is -HostList.

Steps to reproduce:
(Get-Command Invoke-HuntSMBShares).Parameters.Keys
→ Returns "HostList", not "HostFile"

Affected locations:

• README.md, Example 3
• PowerHuntShares.psm1, .PARAMETER HostFile (comment block)
• PowerHuntShares.psm1, example in comment block

Suggested fix: replace all occurrences of "HostFile" with "HostList"
in the documentation.