Update to NPM version

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

@@ -0,0 +1,10 @@
+### `helpers` namespace
+
+This folder contains everything that's available via the [helpers] namespace, after initializing the library:
+
+```js
+const pgp = require('pg-promise')(/*initialization options*/);
+const helpers = pgp.helpers; // `helpers` namespace
+```
+
+[helpers]:http://vitaly-t.github.io/pg-promise/helpers.html