feat: Update install banner

Author: rstoenescu

generator/index.js

@@ -5,10 +5,12 @@ const fs = require('fs'),
 const message = `
 Documentation can be found at: https://quasar.dev
 
-Quasar is relying on donations to evolve. We'd be very grateful if you can
-take a look at: https://www.patreon.com/quasarframework
-Any amount is very welcomed.
-If invoices are required, please first contact razvan@quasar.dev
+Quasar is relying on donations to evolve. We'd be very grateful
+if you can read our manifest on "Why donations are important":
+https://quasar.dev/why-donate
+Donation campaign: https://donate.quasar.dev Any amount is very
+welcomed. If invoices are required, please first contact
+razvan@quasar.dev
 
 Please give us a star on Github if you appreciate our work:
 https://github.com/quasarframework/quasar