Update to NPM version

ProjectSourceCode/node_modules/pg-promise/lib/errors/README.md

@@ -0,0 +1,13 @@
+### `errors` namespace
+
+This folder contains everything that's available via the [errors] namespace, before and after initialization:
+
+```js
+const pgpLib = require('pg-promise');
+const pgp = pgpLib(/*initialization options*/);
+
+pgpLib.errors; // `errors` namespace
+pgp.errors; // `errors` namespace
+```
+
+[errors]:http://vitaly-t.github.io/pg-promise/errors.html