add pg infr to the Readme (#1508)

Author: tmasternak

README.md

@@ -1,31 +1,47 @@
 # NServiceBus.SqlServer 
 
-NServiceBus.SqlServer provides support for sending messages using [Microsoft SQL Server](http://www.microsoft.com/sqlserver) without the use of a service broker.
+NServiceBus.SqlServer provides support for sending messages using [Microsoft SQL Server](http://www.microsoft.com/sqlserver) or [PostgreSQL](https://www.postgresql.org.pl/) without the use of a service broker.
 
 It is part of the [Particular Service Platform](https://particular.net/service-platform), which includes [NServiceBus](https://particular.net/nservicebus) and tools to build, monitor, and debug distributed systems.
 
-See the [SQL Server transport documentation](https://docs.particular.net/transports/sql/) for more details on how to use it.
+See the [SQL Server transport documentation](https://docs.particular.net/transports/sql/) and [PostgreSQL transport documentation](https://docs.particular.net/transports/postgresql/) for more details on how to use it.
 
 ## Installation
 
-Before doing anything else, make sure you have SQL Server up and running in your environment. Also make sure it is accessible from all the machines in your setup.
+### SQL Server 
+
+Before doing anything else, make sure you have SQL Server up and running in your environment. Also, make sure it is accessible from all the machines in your setup.
 
 1. Choose which package you want to use:
    - [NServiceBus.Transport.SqlServer](https://www.nuget.org/packages/NServiceBus.Transport.SqlServer) — references [Microsoft.Data.SqlClient](https://www.nuget.org/packages/Microsoft.Data.SqlClient)
    - [NServiceBus.SqlServer](https://www.nuget.org/packages/NServiceBus.SqlServer) — references [System.Data.SqlClient](https://www.nuget.org/packages/System.Data.SqlClient)
-2. Add the package to your project(s).
-2. In your app.config make sure to provides the necessary connection information needed to communicate to SQL server. A typical setup would be:
-   ```xml
+1. Add the package to your project(s).
+1. In your code provide the necessary connection information to communicate with the SQL server instance. A typical setup would be:
+   ```csharp
    <connectionStrings>
      <add name="NServiceBus/Transport" connectionString="Data Source=.\SQLEXPRESS;Initial Catalog=nservicebus;Integrated Security=True;TrustServerCertificate=true"/>
    </connectionStrings>
    ```
 
-## Performance
+### PostgreSQL
+
+1. Add [NServiceBus.Transport.PostgreSql](https://www.nuget.org/packages/NServiceBus.Transport.PostgreSql) the package to your project(s).
+1. In code [provide connection string information](https://docs.particular.net/transports/postgresql/connection-settings#connection-configuration) necessary to connect to the PostgreSQL database, e.g.:
+   ```csharp
+   var transport = new PostgreSqlTransport("User ID=<user>;Password=<pwd>;Host=localhost;Port=5432;Database=nservicebus;Pooling=true;Connection Lifetime=0;");
+   ```
+   
+### Connection pooling
+
+Deployments with multiple endpoints running on PostgreSQL require external connection pooling e.g. [using pgBouncer](/docs/postgre-with-pgbouncer.md)
 
-Consider creating a RAM drive or using the temporary drive when running in a cloud vm and hosting your databases on it to reduce the time required to run acceptance tests.
+## Testing 
 
-## Running tests locally
+### Performance
+
+Consider creating a RAM drive or using a temporary one when running in a cloud VM and hosting your databases to reduce the time required to run acceptance tests.
+
+### Running tests locally
 
 The tests expect a SQL Server instance to be available.
 
@@ -42,7 +58,3 @@ All tests use the default connection string `Data Source=.\SQLEXPRESS;Initial Ca
   - `receiver` owner `db_owner`
   - `sender` owner `db_owner`
   - `db@` owner `db_owner`
-
-## Connection pooling for PostgreSQL
-
-Deployments with multiple endpoints running on PostgreSQL require external connection pooling e.g. [using pgBouncer](/docs/postgre-with-pgbouncer.md)