Standardize PATH formatting in Prerequisites sections across all READMEs

Co-authored-by: scottaddie <10702007+scottaddie@users.noreply.github.com>

Author: Copilot

dotnet/README.md

@@ -5,7 +5,7 @@ SDK for programmatic control of GitHub Copilot CLI.
 ## Prerequisites
 
 - Any of the [.NET Standard 2.0-compatible .NET implementations](https://learn.microsoft.com/dotnet/standard/net-standard?tabs=net-standard-2-0#select-net-standard-version)
-- GitHub Copilot CLI installed and in PATH (or provide custom `Connection = RuntimeConnection.ForStdio(path: ...)`)
+- GitHub Copilot CLI installed and in `PATH` (or provide custom `Connection = RuntimeConnection.ForStdio(path: ...)`)
 
 ## Installation
 

nodejs/README.md

@@ -5,7 +5,7 @@ TypeScript SDK for programmatic control of GitHub Copilot CLI via JSON-RPC.
 ## Prerequisites
 
 - Node.js ^20.19.0 or >=22.12.0
-- GitHub Copilot CLI installed and in PATH (or provide a custom `connection`)
+- GitHub Copilot CLI installed and in `PATH` (or provide a custom `connection`)
 
 ## Installation
 

python/README.md

@@ -5,7 +5,7 @@ Python SDK for programmatic control of GitHub Copilot CLI via JSON-RPC.
 ## Prerequisites
 
 - Python 3.11+
-- GitHub Copilot CLI installed and in PATH (or provide a custom `connection=RuntimeConnection.for_stdio(path=...)`)
+- GitHub Copilot CLI installed and in `PATH` (or provide a custom `connection=RuntimeConnection.for_stdio(path=...)`)
 
 ## Installation