Fix SDK documentation typos

[stephentoub]

This cleanup fixes small grammar and wording issues across the SDK documentation and public comments so examples and API docs read consistently for users.

The changes tighten wording in README guidance, OAuth and MCP docs, Node and .NET README snippets, C# and Go comments, and Python JSON-RPC docstrings without changing runtime behavior.

Validation:

• go test ./internal/jsonrpc2 ./internal/embeddedcli
• python -m pytest test_jsonrpc.py
• dotnet format src\GitHub.Copilot.SDK.csproj --verify-no-changes --include src\JsonRpc.cs
• npm exec --yes --package prettier@3.8.1 -- prettier --check src\sessionFsProvider.ts

[Copilot]

Pull request overview

Documentation and comment cleanup across the multi-language Copilot SDK repo to improve grammar/wording consistency in user-facing READMEs, docs, and inline API comments.

Changes:

• Refines wording/grammar in top-level and language-specific READMEs and troubleshooting/setup docs.
• Polishes Python JSON-RPC docstrings and a related test helper docstring for consistency and punctuation.
• Minor text adjustments in Go/.NET/Node comments (including one verbose Go install log string).

Show a summary per file

File	Description
README.md	Rewords FAQ explanation of default tool enablement for clarity.
python/test_jsonrpc.py	Docstring punctuation/wording tweak in test helper.
python/copilot/_jsonrpc.py	Docstring wording/punctuation improvements in JSON-RPC client.
nodejs/src/sessionFsProvider.ts	Fixes terminology in interface comment (“Implementers”).
nodejs/README.md	Clarifies example comment text in Quick Start snippet.
go/internal/jsonrpc2/frame.go	Adjusts comment wording for framing header description.
go/internal/embeddedcli/embeddedcli.go	Tweaks verbose install log message text.
dotnet/src/JsonRpc.cs	Corrects spelling in an explanatory framing comment.
dotnet/README.md	Clarifies example comment text in Quick Start snippet.
docs/troubleshooting/mcp-debugging.md	Small wording tweak in a shell snippet comment.
docs/setup/github-oauth.md	Fixes article usage (“an SDK client”).

Copilot's findings

• Files reviewed: 11/11 changed files
• Comments generated: 1

[github-actions]

Cross-SDK Consistency Review ✅

This PR makes purely textual corrections (grammar, article usage, wording) across documentation files and inline comments/docstrings. No public API surface, method signatures, parameter types, or runtime behavior is changed in any SDK.

No cross-SDK consistency issues found. The changes touch Node.js, Python, Go, and .NET in parallel (plus shared docs), so parity is maintained throughout.

Generated by SDK Consistency Review Agent for issue #1235 · ● 103K · ◷