Update about_breez_sdk_greenlight.md

src/guide/about_breez_sdk_greenlight.md

@@ -4,6 +4,11 @@
 
 The Breez SDK provides developers with an end-to-end solution for integrating self-custodial Lightning payments into their apps and services. It eliminates the need for third-parties, simplifies the complexities of Bitcoin and Lightning, and enables seamless onboarding for billions of users to the future of peer-to-peer payments.
 
+To provide the best experience for their end-users, developers can choose between the following implementations:
+
+- [Breez SDK - Greenlight](../guide/about_breez_sdk_greenlight.md#what-is-the-greenlight-implementation)
+- [Breez SDK - Liquid](https://sdk-doc-liquid.breez.technology/)
+
 ## **What Is the *Greenlight* Implementation?**
 
 The *Greenlight* implementation is a cloud-based Lightning integration. It offers a self-custodial, end-to-end solution for integrating Lightning payments, utilizing nodes-on-demand provided by Blockstream’s Greenlight, with built-in Lightning Service Providers (LSP), on-chain interoperability, and third-party fiat on-ramps.
@@ -41,6 +46,18 @@ The *Greenlight* implementation allows end-users to send and receive payments us
 
 ![Breez SDK - Greenlight](https://github.com/breez/breez-sdk-docs/raw/main/src/images/BreezSDK_Greenlight.png)
 
+### **Differences Between Implementations**
+
+| Greenlight Implementation | Liquid Implementation |
+| --- | --- |
+| Pure Lightning Network implementation | Trust profile is with the Liquid sidechain |
+| Uses Lightning Service Providers (LSPs) for liquidity | No channel management or LSP required |
+| Channel open and closing fees | No setup fees for end-users |
+| No minimum limit for transactions (after channel opening) | Minimum payment size of 1,000 sats |
+| Setup costs are correlated to Bitcoin mining fees | Static Liquid on-chain fees |
+| Requires an API key | Does not require an API key |
+
+
 ## Pricing
 
 The Breez SDK - *Greenlight* is **free** for developers.