docs: add sponsorship descriptors

docs/support.md

@@ -1,20 +1,43 @@
-# Support Fuse.js Development
+# Become a Fuse.js Sponsor
 
-If you use Fuse.js in your daily work and feel that it has made your life easier, please consider sponsorship. It’s like buying me a coffee once in a while! ☕️ If you run a business that is using Fuse.js, it makes sense to sponsor its development: **it ensures the project stays healthy and actively maintained.**
+Fuse.js is an Apache licensed open source project and completely free to use. If you use Fuse.js in your daily work and feel that it has made your life easier, please consider sponsorship.
+
+The amount of effort needed to maintain this and develop new features for the project is only made sustainable thanks to your generous financial backing.
+
+---
+
+## How to Sponsor
+
+Sponsorships can be done via [GitHub Sponsors](https://github.com/sponsors/krisk) or [PayPal](https://www.paypal.me/kirorisk). Invoices can be obtained via GitHub's payment system. Both monthly-recurring sponsorships and one-time donations are accepted. Recurring sponsorships are entitled to logo placements as specified in [Sponsorship Tiers](#tier-benefits).
+
+### Sponsoring Fuse.js as a Business
+
+If you run a business that is using Fuse.js, it makes sense to sponsor its development: **it ensures the project stays healthy and actively maintained.**
 
 Also, you will be recognized as a beacon of support to open-source developers everywhere.
 
-### One-time Donations
+### Sponsoring Fuse.js as an Individual
 
-Accepting donations through these channels:
+If you are an individual user and have enjoyed the productivity of using Fuse.js, consider donating as a sign of appreciation.
 
-<a href="https://www.paypal.me/kirorisk" target="_blank" rel="noopener">
-  <img src="/assets/img/paypal.png" style="width:100px">
-</a>
+You can also try to convince your employer to sponsor Fuse.js as a business 😊.
 
-### Recurring Pledges
+---
 
-Recurring pledges come with exclusive perks, e.g. having your name listed in the Fuse.js GitHub repository, and/or have your company logo placed on this website.
+## Tier Benefits
 
-- [Become a backer or sponsor via **GitHub**](https://github.com/sponsors/krisk)
-- [Become a backer or sponsor via **Patreon**](https://www.patreon.com/krisk)
+- **Coffee Sponsor (USD $5/month):**
+
+  - Your name will be added to the [BACKERS.md](https://github.com/krisk/Fuse/blob/master/backers.md) file of the GitHub repo. Also, thank you! It’s like buying me a cup of coffee every month ☕️.
+
+- **Bronze Sponsor (USD $20/month):**
+
+  - Your name or logo in the [README.md](https://github.com/krisk/Fuse) file of the GitHub repo.
+
+- **Silver Sponsor (USD $100/month):**
+
+  - Your company's logo placed on both the front page of [fusejs.io](https://fusejs.io/) and in the [README.md](https://github.com/krisk/Fuse) file of the GitHub repo.
+
+- **Gold Sponsor (USD $400/month):**
+
+  - All of the above but with a bigger logo, and most prominent placement.