Resolve issue #31

closes #31

Author: AngeloDotNet

src/NET6CustomLibrary/Docs/HealthChecks/README-HealthChecks-SQLServer.md

@@ -0,0 +1,42 @@
+# Health Checks configuration for SQL server database
+
+
+## Configuration to add to the appsettings.json file
+
+```json
+"ConnectionStrings": {
+  "Default": "Data Source=[SERVER];Initial Catalog=[DATABASE];User ID=[USERNAME];Password=[PASSWORD]"
+  //or "Default": "Data Source=[SERVER];Initial Catalog=[DATABASE];User ID=[USERNAME];Password=[PASSWORD];Encrypt=False"
+},
+```
+
+
+## Registering services at Startup
+
+```csharp
+public Startup(IConfiguration configuration)
+{
+  Configuration = configuration;
+}
+
+public IConfiguration Configuration { get; }
+	
+public void ConfigureServices(IServiceCollection services)
+{
+    var connectionString = Configuration.GetSection("ConnectionStrings").GetValue<string>("Default");
+    services.AddSqlServerHealthChecks(connectionString, "SQLServer");
+}
+
+//OMISSIS
+
+public void Configure(WebApplication app)
+{
+  //OMISSIS
+
+  app.UseEndpoints(endpoints =>
+  {
+      endpoints.MapControllers();
+      endpoints.AddDatabaseHealthChecks("/status", false); //Use the True parameter if access is to be in AllowAnonymous mode
+  }
+}
+```