chore: fix frontmatter title issue and typos

Signed-off-by: Michael Beemer <[email protected]>

specification/appendix-A.md

@@ -1,5 +1,6 @@
 ---
-title: Appendix A: Included Utilities
+id: appendix-a
+title: "Appendix A: Included Utilities"
 description: Information on OpenFeature ecosystem utilities
 sidebar_position: 4
 ---
@@ -10,15 +11,15 @@ This document contains requirements for auxiliary utilities provided by the SDK,
 
 ## In-memory provider
 
-> Language specific OpenFeature SDK implementations **SHOULD** expose an in-memory provider built into the SDK.
+> Language-specific OpenFeature SDK implementations **SHOULD** expose an in-memory provider built into the SDK.
 
-The in-memory provider is intended to be used for testing, SDK consumers may use it for their use cases.
-Hence, the packaging, naming and access modifiers must be set appropriately.
+The in-memory provider is intended to be used for testing; SDK consumers may use it for their use cases.
+Hence, the packaging, naming, and access modifiers must be set appropriately.
 
 Given below are features this provider **MUST** support,
 
 - Provider must be initiated with a pre-defined set of flags provided to a constructor
-- Feature Flag structure must be minimal but should help testing OpenFeature specification
+- Feature Flag structure must be minimal but should help to test OpenFeature specification
 - EvaluationContext support should be provided through callbacks/lambda expressions
 - Provider must support a means of updating flag values, resulting in the emission of `PROVIDER_CONFIGURATION_CHANGED` events
 - Provider must be maintained to support specification changes
@@ -27,7 +28,7 @@ Given below are features this provider **MUST** support,
 
 > E2E tests must utilize [in-memory provider](#in-memory-provider) defined within the SDK and must be self-contained.
 
-OpenFeature project maintains end-to-end(e2e) test suite defined with [Gherkin syntax](https://cucumber.io/docs/gherkin/).
+OpenFeature project maintains an end-to-end(e2e) test suite defined with [Gherkin syntax](https://cucumber.io/docs/gherkin/).
 These test definitions reside in the [OpenFeature test-harness](https://github.com/open-feature/test-harness) repository.
 
 ```mermaid