add token everywhere for beginners

Author: julien-c

docs/inference-providers/guides/first-api-call.md

@@ -54,6 +54,8 @@ Set your token as an environment variable:
 export HF_TOKEN="your_token_here"
 ```
 
+You can add this line to your `.bash_profile` or similar file for all your terminal environments to automatically source the token.
+
 The Python or TypeScript code snippet will use the token from the environment variable.
 
 <hfoptions id="python-code-snippet">