Add limitations sections

[smitpatel]

To add limitation that InMemory does not support relationalship constraints & cascade deletes.

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Document Details

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• ID: 40dffa7d-bea9-8bce-e409-3ef8bf46d08a
• Version Independent ID: 970f6835-a930-3321-212f-a9be6c17ef79
• Content: InMemory Database Provider - EF Core
• Content Source: entity-framework/core/providers/in-memory/index.md
• Product: entity-framework
• Technology: entity-framework-core
• GitHub Login: @rowanmiller
• Microsoft Alias: divega

[lnaie]

nor transactions. ;)