dos: install instead of just downloading (#3540)

Adding '!' because without it, the command just downloads to $HOME. Also this maintains consistency with 'welcome/install/' line 43.

Co-authored-by: Danilo Pantani <[email protected]>

docs/docs/01-welcome/01-index.md

@@ -32,7 +32,7 @@ With just a few commands, you can use Ignite CLI to:
 To install the `ignite` binary in `/usr/local/bin` run the following command:
 
 ```
-curl https://get.ignite.com/cli | bash
+curl https://get.ignite.com/cli! | bash
 ```
 
 ## Projects using Tendermint and Cosmos SDK
@@ -60,4 +60,4 @@ and explorers that are built in the Cosmos ecosystem.
   { name: "OLLO Station", logo: "img/logo/ollostation.svg"},
   { name: "Mun", logo: "img/logo/mun.svg"},
   { name: "Aura Network", logo: "img/logo/aura.svg"},
-]}/>
+]}/>