docs: Add Deno how-to to README.md

Author: kamilogorek

README.md

@@ -22,7 +22,7 @@ const supabase = createClient('https://xyzcompany.supabase.co', 'public-anon-key
 
 ### UMD
 
-You can now use plain `<script>`s to import supabase-js from CDNs, like:
+You can use plain `<script>`s to import supabase-js from CDNs, like:
 
 ```html
 <script src="https://cdn.jsdelivr.net/npm/@supabase/supabase-js"></script>
@@ -48,7 +48,7 @@ Then you can use it from a global `supabase` variable:
 
 ### ESM
 
-You can now use type="module" `<script>`s to import supabase-js from CDNs, like:
+You can use `<script type="module">` to import supabase-js from CDNs, like:
 
 ```html
 <script type="module">
@@ -60,6 +60,15 @@ You can now use type="module" `<script>`s to import supabase-js from CDNs, like:
 </script>
 ```
 
+
+### Deno
+
+You can use supabase-js in the Deno runtime via esm.sh:
+
+```js
+import { createClient } from 'https://esm.sh/@supabase/supabase-js@2'
+```
+
 ### Custom `fetch` implementation
 
 `supabase-js` uses the [`cross-fetch`](https://www.npmjs.com/package/cross-fetch) library to make HTTP requests, but an alternative `fetch` implementation can be provided as an option. This is most useful in environments where `cross-fetch` is not compatible, for instance Cloudflare Workers: