docs(mssql): add docs for WithScripts and GetSQLCmdPath

Author: MattiasMTS

docs/modules/mssql.md

@@ -48,6 +48,28 @@ func Run(ctx context.Context, img string, opts ...testcontainers.ContainerCustom
 
 When starting the MS SQL Server container, you can pass options in a variadic way to configure it.
 
+#### Init Scripts
+
+If you need to execute SQL scripts when the container starts, you can use `mssql.WithScripts(scripts
+...string)` with one or more `*.sql` scripts. The scripts will be executed in order after the
+container is ready.
+
+<!--codeinclude-->
+[Example of SQL script](../../modules/mssql/testdata/seed.sql)
+<!--/codeinclude-->
+
+This will:
+1. Copy each script into the container.
+2. Execute them using `sqlcmd` after the container is ready.
+
+#### SQL Command Path
+
+The `mssql.GetSQLCmdPath` helper function returns the appropriate path to the `sqlcmd` executable based on the MS SQL Server image being used. This is used internally by the `WithScripts` option but can also be used directly if needed.
+
+```golang
+path := mssql.GetSQLCmdPath("mcr.microsoft.com/mssql/server:2022-latest")
+```
+
 #### Image
 
 If you need to set a different MS SQL Server Docker image, you can set a valid Docker image as the second argument in the `Run` function.