Change serverless signup dropdown to note

Signed-off-by: davidmirror-ops <[email protected]>

docs/user_guide/quickstart_guide.md

@@ -3,19 +3,14 @@
 
 In this guide, you will create and run a Flyte workflow in a local Python environment to generate the output "Hello, world!"
 
-````{dropdown} Try Flyte in your browser
-:animate: fade-in-slide-down
-
+:::{note} **Try Flyte in your browser**
 Union Serverless is a SaaS offering by [Union](https://www.union.ai/) built on Flyte. Sign up below and check out the [Union Serverless Quickstart guide](https://docs.union.ai/serverless/quick-start).
-
 ```{button-link} https://signup.union.ai/
 :color: warning
 
 Sign up for Union Serverless
 ```
 
-````
-
 
 ## Prerequisites