Add solution file and README to ensure samples build

Co-authored-by: ReubenBond <[email protected]>

Author: Copilot

docs/orleans/host/snippets/transport-layer-security/csharp/README.md

@@ -0,0 +1,27 @@
+# Transport Layer Security (TLS) Code Samples
+
+This directory contains code samples demonstrating how to configure Transport Layer Security (TLS) in Orleans applications.
+
+## Projects
+
+- **SiloExample**: Demonstrates TLS configuration for Orleans silos
+- **ClientExample**: Demonstrates TLS configuration for Orleans clients
+
+## Building the Samples
+
+To build all samples:
+
+```bash
+dotnet build transport-layer-security.sln
+```
+
+To build individual projects:
+
+```bash
+dotnet build SiloExample/SiloExample.csproj
+dotnet build ClientExample/ClientExample.csproj
+```
+
+## Note
+
+These samples are intended for documentation purposes and demonstrate various TLS configuration scenarios including basic setup, development environments, certificate files, and advanced configurations.