docs: Revert changes to the readme on Gitpod (ignite#1349)

v0.17 hasn't been released yet, so it's early to change the readme.

Author: fadeev

.gitpod/readme.md

@@ -9,11 +9,11 @@ In this browser-based development environment, the terminal window is in the low
 To create a blockchain and start a node in development:
 
 ```
-starport scaffold chain github.com/user/hello
+starport app github.com/user/hello
 
 cd hello
 
-starport chain serve
+starport serve
 ```
 
 ## Next steps