Fix typo in README.md

Author: liamaharon

packages/pg-pool/README.md

@@ -69,7 +69,7 @@ const config = {
 const pool = new Pool(config);
 
 /*
- Transforms, 'progres://DBuser:secret@DBHost:#####/myDB', into
+ Transforms, 'postgres://DBuser:secret@DBHost:#####/myDB', into
  config = {
  user: 'DBuser',
  password: 'secret',