Fix prefix

Author: reakaleek

src/api/Elastic.Documentation.Api.Lambda/Program.cs

@@ -15,7 +15,7 @@
 
 var app = builder.Build();
 
-var v1 = app.MapGroup("/v1");
+var v1 = app.MapGroup("/docs/_api/v1");
 v1.MapElasticDocsApiEndpoints();
 
 app.Run();