chore: update readme

README.md

@@ -1,7 +1,12 @@
 # AIChat
 
+[![CI](https://github.com/sigoden/aichat/actions/workflows/ci.yaml/badge.svg)](https://github.com/sigoden/aichat/actions/workflows/ci.yaml)
+[![Crates](https://img.shields.io/crates/v/aichat.svg)](https://crates.io/crates/aichat)
+
 Chat with OpenAI GPT-3.5 in the terminal.
 
+![demo](https://user-images.githubusercontent.com/4012553/222600858-3fb60051-2bf2-4505-92ff-649356cdb1f6.gif)
+
 ## Install
 
 ### With cargo

src/main.rs

@@ -194,7 +194,7 @@ fn run_repl(
                     Some(name) => match config.roles.iter().find(|v| v.name == name) {
                         Some(role_) => {
                             *role = Some(role_.clone());
-							dump("", 1);
+                            dump("", 1);
                         }
                         None => dump("Unknown role.", 2),
                     },