diff --git a/README.md b/README.md
index b8fbba5..4484462 100644
--- a/README.md
+++ b/README.md
@@ -17,7 +17,7 @@ Create `~/.airc` file (in your home directory):
       "apiKey": "Your OpenAI API key",
       "model": "gpt-4"
     },
-    "perplexity:" {
+    "perplexity": {
       "apiKey": "Your Perplexity API key",
       "model": "pplx-70b-chat",
     }
@@ -25,6 +25,8 @@ Create `~/.airc` file (in your home directory):
 }
 ```
 
+Note you need to add at least one AI inference provider and it's API key. Currently supported providers are OpenAI and Perplexity.
+
 ## Usage
 
 ```