Update Connecting.md

[gusmally]

Change "unencrypted" to "encrypted" for the Encrypted Key section

Description

Please explain the changes you made here.

Checklist

• Code compiles correctly
• Code is formatted according to Coding Conventions
• Created tests which fail without the change (if possible)
• All tests passing (dotnet test)
• Extended the README / documentation, if necessary
• Provide JIRA issue id (if possible) or GitHub issue id in PR name

[github-actions]

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