Minor: update FanoutSearch.Server

Author: shaobin

src/Modules/LIKQ/FanoutSearch.Server/Program.cs

@@ -51,7 +51,7 @@ private static IEnumerable<long> Indexer(object _queryObj, string type)
 
         private static void Usage()
         {
-            Console.WriteLine("usage: FanoutSearch.Server.exe tsl_assembly_file [storage_root]");
+            Console.WriteLine("usage: FanoutSearch.Server tsl_assembly_file [storage_root]");
         }
     }
 }

src/Modules/LIKQ/FanoutSearch.Server/README.md

@@ -0,0 +1,7 @@
+# Instructions for building and running FanoutSearch.Server
+
+- Build the required NuGet packages by running `tools/build.ps1` in the root directory of this repository if you haven't done so.
+- cd `src/Modules/LIKQ/FanoutSearch.Server`
+- Run `dotnet restore`
+- Run `dotnet build --configuration Release`
+- Run `dotnet run --framework net7.0 --property:Configuration=Release --no-build -- --help`