Fix typo in README.md (dotnet#55392)

Author: GiovanniBraconi

docs/README.md

@@ -17,7 +17,7 @@ The table below outlines the different docs in this folder and what they are hel
 | [Working with EventSources and EventCounters](EventSourceAndCounters.md) | Guidance on adding event tracing to a library | Anyone needing to add event tracing for diagnostics purposes      |
 | [List of Diagnostics](list-of-diagnostics.md) | List of diagnostic codes used in repo | Anyone needing to add new codes for diagnostics purposes |
 | [Tests on Helix](Helix.md)        | An overview of the Helix test environment     | Anyone debugging tests in Helix or looking to understand the output from Helix builds       |
-| [Issue management](IssueManagementPolicies.md) | Overview of policies in place to manage issues| Community members and collaborators looking to understand how we handle closed issue, issues that need author feedback, etc |
+| [Issue management](IssueManagementPolicies.md) | Overview of policies in place to manage issues| Community members and collaborators looking to understand how we handle closed issues, issues that need author feedback, etc |
 | [Preparing a patch update](PreparingPatchUpdates.md)        | Documentation on how to setup for a patch release of ASP.NET Core       | Anyone looking to publish servicing updates         |
 | [Project properties](ProjectProperties.md)     | Overview of configurable MSBuild properties on the repo    | Anyone looking to modify how a project is packaged   |
 | [How references are resolved](ReferenceResolution.md)       | Overview of dependency reference setup in the repo         | Anyone looking to understand how package references are configured in the repo |