Add supporters, remove listed alts

README.md

@@ -135,18 +135,28 @@ For more information, see the documentation: [How to deploy a BTCPay server inst
 
 ## Supported altcoins
 
-Bitcoin is the only focus of the project and its core developers. However, opt in integrations are present for several altcoins:
+Bitcoin is the only focus of the project and its core developers. However, opt in integrations are present for [several altcoins](https://github.com/btcpayserver/btcpayserver-doc/blob/master/Altcoins.md). Altcoins are maintained by their respective communities.
 
-* Bitcore (BTX)
-* Dash (DASH)
-* Dogecoin (DOGE)
-* Feathercoin (FTC)
-* Groestlcoin (GRS)
-* Litecoin (LTC)
-* Monacoin (MONA)
-* Polis (POLIS)
-* Viacoin (VIA)
-* BGold (BTG) (also known as Bitcoin Gold)
-* BPlus (XBC) (also known as Bitcoin Plus)
+## Supporters
 
-Altcoins are maintained by their respective communities.
+The BTCPay Server Project is proudly supported by these entities through the [BTCPay Server Foundation](https://foundation.btcpayserver.org/).
+
+<table>
+  <tbody>
+    <tr>
+      <td align="center" valign="middle">
+        <a href="https://twitter.com/sqcrypto" target="_blank">
+          <img  src="BTCPayServer/wwwroot/img/squarecrypto.svg" alt="Sponsor Square Crypto" height=100>
+          <br/>
+          <span>Square Crypto</span>
+        </a>
+      </td>
+       <td align="center" valign="middle">
+        <a href="https://acinq.co/" target="_blank">
+          <img  src="BTCPayServer/wwwroot/img/acinq-logo.svg" alt="ACINQ" height=100>
+          <br/>
+          <span>ACINQ</span>
+        </a>
+      </td>
+    </tr>
+  </tbody>