docs: add note about chains supported on UI (#304)

Co-authored-by: Paul Razvan Berg <[email protected]>

Author: smol-ninja

docs/concepts/07-chains.mdx

@@ -8,8 +8,8 @@ import Link from "@docusaurus/Link";
 import { links } from "@site/src/constants";
 
 {/* prettier-ignore */}
-Sablier Protocol is live on 27 mainnets and 11 testnets. Do you want to get Sablier deployed on your chain? If you meet the [requirements](/guides/custom-deployments#requirements)
-for custom deployment, fill out <Link href={links.forms.chains}>this form</Link> and our team will get back to you.
+Sablier Protocol is live on 25+ mainnets and 11+ testnets. However, not all of these chains may be supported by the
+[Sablier Interface](https://app.sablier.com/). If you're interested in that, fill out <Link href={links.forms.call}>this form</Link>.
 
 ## Mainnets
 
@@ -63,4 +63,6 @@ for custom deployment, fill out <Link href={links.forms.chains}>this form</Link>
 ## Notes
 
 - For more information about these EVM chains, such as RPC URLs, check out [Chainlist](https://chainlist.org).
+- Do you want to get Sablier deployed on your chain? If you meet the [requirements](/guides/custom-deployments#requirements)
+  for custom deployment, fill out <Link href={links.forms.chains}>this form</Link> and our team will get back to you.
 - Sablier does not support chains with native tokens that do not have 18 decimals.