Fix incorrect navigation link, typos in MCP plugins and vector store docs

[Ashutosh0x]

Fixes #394, #282, #281

This PR addresses three separate documentation issues:

Fix #394 — Incorrect document navigation link

The Vector Store (Memory) Connectors tip on the Semantic Kernel Components page linked to the AI Services page instead of the Vector Store Connectors page. Both the AI Service Connectors and Vector Store sections had identical links pointing to ai-services/index.md.

Before: [Adding AI services to Semantic Kernel](./ai-services/index.md)
After: [Vector Store Connectors](./vector-store-connectors/index.md)

Fix #282 — Typo in MCP plugins page

Grammar fix: ''In both case'' → ''In both cases'' on the Adding MCP Plugins page.

Fix #281 — Incorrect '.net' reference on Python/Java vector store pages

The vector store connectors overview page says ''Semantic Kernel and .net provides an abstraction...'' but this text appears on all language pivots including Python and Java. Removed the .net-specific reference to make the description language-agnostic.

Before: ''Semantic Kernel and .net provides an abstraction...''
After: ''Semantic Kernel provides an abstraction...''

Files Changed

• semantic-kernel/concepts/semantic-kernel-components.md
• semantic-kernel/concepts/plugins/adding-mcp-plugins.md
• semantic-kernel/concepts/vector-store-connectors/index.md

[learn-build-service-prod]

Learn Build status updates of commit 7b66fff:

⚠️ Validation status: warnings

File	Status	Preview URL	Details
agent-framework/get-started/workflows.md	⚠️Warning		Details
semantic-kernel/concepts/plugins/adding-mcp-plugins.md	✅Succeeded
semantic-kernel/concepts/semantic-kernel-components.md	✅Succeeded
semantic-kernel/concepts/vector-store-connectors/index.md	✅Succeeded

agent-framework/get-started/workflows.md

• Line 64, Column 1: [Warning: invalid-code] The code snippet "~/../agent-framework-code/python/samples/01-get-started/05_first_workflow.py" could not be found.
• Line 68, Column 1: [Warning: invalid-code] The code snippet "~/../agent-framework-code/python/samples/01-get-started/05_first_workflow.py" could not be found.

For more details, please refer to the build report.

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